With the season of colds and sniffles fast approaching natural ways to boost your immunity are especially relevant. Last month we took a look at how the food you eat can boost your immunity and this month we’ll take a look at some ways to boost your immunity with good sleep and exercise choices.

Douse the night light

 

Keep your bedroom as dark as possible when you are sleeping. Too much brightness during the night depresses your immune system. This is because only when it’s really dark does your body produce melatonin, a hormone that not only helps you drift off to sleep but also helps prevent colds, flu, infection and certain diseases. Not sleeping enough, or being exposed to light during the night, decreases melatonin production and boosts oestrogen levels, and higher than normal levels of oestrogen are associated with an increased risk of breast cancer. Recent studies have found a massive 60 per cent increased risk of cancer among women who work night shifts, and an even greater increase among women with bedrooms that are brighter than they should be. Not surprisingly, women with limited vision or blindness have an approximate 20–50 per cent reduction in breast-cancer risk.

 

Even a dim source like a bedside clock or a night light may switch melatonin production off, so keep your bedroom as dark as possible. And if light from street lamps shines into your bedroom, invest in some black-out curtains.

 

Get a full night’s sleep

 

Everybody’s different: your body may need anywhere from 6–8 hours of sleep each night. Whatever your personal sleep requirement is, make sure you get it!

 

Sleeping better may help you fight off illness. People who are sleep deprived often have raised levels of stress hormones, as well as running the risk of persistent inflammation in the blood and a decrease in immune function. Millions of chronically deprived people are putting their health, quality of life and even length of life in jeopardy by not getting enough quality sleep. There is a clear connection between sleep and health, and therefore sleep deprivation and disease, and the evidence is getting stronger.

 

Quality sleep has been linked to balanced hormone levels (including human growth hormone and the stress hormone, cortisol); these keep weight down, lead to clear thinking and reasoning, improve mood, and engender vibrant, healthy skin. Blood pressure and heart rate are typically at their lowest levels during sleep; people who tend to sleep less have higher blood pressure. New research from a Warwick study of the sleep patterns of some 10,000 Britains links cutting sleep to five hours or fewer to a doubled risk of dying from cardiovascular disease. Shortage of sleep is also linked to increased risk of weight gain and diabetes.

 

Put simply, people who sleep well live longer. So if you want good health and to live to a ripe old age, do your immune system and yourself a favour and say ‘good night’ sooner.

 

Pick up the pace

 

Walking at a brisk pace every day for 20–30 minutes stimulates the production of a variety of immune cells and enhances the overall function of the immune system.

 

Researchers from the University of South Carolina and the University of Massachusetts recently studied 550 adults. Those who simply walked at a brisk pace had about 25 per cent fewer colds than those who seldom or never exercised. Results of at least three clinical trials tend to confirm this finding. In all three trials, women who were told to walk briskly most days over a three-month period developed colds only about half as often as those who did no exercise at all.

 

The research shows that during moderate exercise, several positive changes occur in the immune system. Various immune cells circulate through the body more quickly and are better able to kill bacteria and viruses. Once the exercise session is over, the immune system returns to normal. The preliminary conclusions are that moderate exercise, such as a brisk walk, will give your immune system a boost, and this in turn should increase your chances of fighting off cold viruses in the long term.

 

Exercise that increases your heart rate and moves large muscles (such as those in your legs and arms) is what you should aim for. Choose an activity that you enjoy and can start slowly; gradually increasing, as you get fitter. Aim to work out for 20–30 minutes four to six times a week. Walking briskly is very popular and does not require any special equipment or training. Other good exercises if you feel more energetic include swimming, cycling, gentle jogging and trampoline. Even if you are pushed for time, benefits can be gained simply by walking upstairs rather than taking the lift, or by walking or cycling on shorter journeys rather than taking the car.

 

Pick a fight

 

Sign up for a martial arts class, or some basic instruction in self defence, and see your immunity and your health and fitness improve.

 

One study put 11 healthy boys aged between 14 and 18 through a 1.5-hour wrestling practice session, sampling their blood before and after the session. The study found that levels of all groups of white blood cells, particularly the natural killer cells, rose significantly. The natural killer cells fight cancer and viruses by searching out the equivalent of a flag carried by normal cells. Those without such a flag are attacked by a cocktail of chemicals.

 

Another study, this time on martial arts, compared the fitness levels of nine people aged between 40 and 60 who practised Soo Bahk Do (a martial art similar to karate) with those of nine sedentary people. Those who did the martial art were found to have better levels of body fat, balance, flexibility, muscle strength, endurance and aerobic capacity.

 

Martial arts – even mild forms like Tai Chi – have long been known to confer tremendous immune boosting anti-ageing health benefits to their followers. Throughout Asia, it’s not uncommon to see large groups of elderly (people in their 70’s and 80’s) practicing Tai Chi at sunrise in the community parks. Despite their age, these people have better aerobic conditioning, balance, strength, flexibility and coordination than many typical Americans in their 30’s. Any form of martial arts will produce similar benefits. In addition to tai chi, kick boxing and Tai Kwnon Do are also excellent, but do make sure you sign up for a beginner’s class and get the okay from your GP if you are on medication or suffering from a medical condition. 

 

Work out, but don’t overdo it

 

If you aren’t an athlete or professional dancer, and are exercising for over an hour a day several times a week, give yourself and your immune cells a break and cut down on your workout time.

 

As with diet, moderation is crucial; too much exercise, or exercising to the point of exhaustion, can boost the body’s production of adrenaline and cortisol – two hormones that temporarily suppress immune function. Olympians and other highly trained athletes often report that after intense competition and training they are more susceptible to colds. The exercise slogan of the 1980s, ‘no pain, no gain’, has fortunately given way to a more realistic notion that moderate exercise confers more health benefits than strenuous exercise. Moderate exercisers have the added benefit of suffering fewer injuries as well.

 

Exercising too hard and for too long isn’t good for your immune system, so you need to aim for moderate exercise. One way to ensure that you are exercising at the right pace is to see if you can carry on a conversation while you are exercising. You should be slightly out of breath but not panting and unable to speak. So if you find yourself panting, huffing and puffing STOP! You’re exercising too hard.

 

While intensive training is what some prefer, rest assured that something as simple as a 30-minute daily walk will provide your body with all the health and immune benefits it needs. The key is, no matter how you get your exercise, to do it regularly and make sure it’s fun!

 

Work up a sweat

 

Work up a sweat, even if the barometer drops. Perspiration is a great way to remove toxins and other infection-friendly waste material from your body.

 

Have you noticed how, when you get an infection, you can also get a fever or the one area becomes hot? An increase in body temperature is your immune system’s way of actively fighting infection and disease. Sweating promotes the release of stored toxins through your skin, easing the toxic load on your body.

 

You can work up a sweat through exercise or when you do everyday tasks, such as gardening or housework. Using a sauna can also provide benefits, but – if you do have a medical condition – check with your doctor first before exposing yourself to high temperatures. You don’t need to be saturated with perspiration. Remember that overdoing exercise is not immune-system friendly – a gentle sweat will do your immune system a power of good, bringing a rosy glow to your cheeks at the same time.

 

But what if it’s too late and you haven’t managed to avoid that cold? Should you rest or try to sweat it out? Much depends on your symptoms. In general, if your symptoms are above your neck and you have no fever, gentle exercise or building up a light sweat is probably safe. Intensive exercise should be postponed until after the symptoms have gone away. However, if there are symptoms and signs of flu, such as fever or swollen glands, at least 10 days should be set aside before you resume ordinary training.

 

Next month: Boosting immunity with lifestyle choices

Studies have shown that turning yourself upside down can boost memory and alertness. It reverses the usual pull of gravity, boosts circulation and gives a sense of renewal. If you can’t stand on your head, sit down on a chair and put your head between your knees. Stay there for a minute before slowly returning to a sitting position.

This month’s case study is 30 year old ‘Julie’ – who came to the Clinic because of Polycystic Ovary Syndrome (PCOS).

During my early twenties while I was at university my periods became quite erratic. I would often go 3 months without a period. All the time I was at university I put this down to stress as I had heard this can interfere with our menstrual cycles. It was actually quite nice not having too many periods! When I reached 30 I suddenly started being more aware of my periods and what was happening to my body. I noticed that I was also developing more hair around my chin and inner thighs. I had developed some acne on my back which was very unusual as I had always had such clear skin. I was putting on weight rapidly, particularly around my middle,  which was also distressing. I decided to go to my GP who said that I had a condition called Polycystic Ovary Syndrome (PCOS). I asked what this meant and all he said was it was a condition of hormone imbalance and it is linked high testosterone. He recommended I go on the Pill which he said would regulate my periods. I explained that I was not keen to take the Pill and would rather have more investigations. He was reluctant to recommend anything else apart from the Pill so I decided to do my own research.

 

I searched on the Internet for PCOS and came across The Dr Marilyn Glenville Clinic. I downloaded an e-book, which was very informative because it explained what PCOS was, something that my GP had never done and it gave me advice about the conventional (medical) approach and nutritional approach. This information gave me so much hope and encouragement and I was very excited. I decided to book an appointment with one of the nutritionists at the clinic because I knew I would need the motivation and support of a qualified practitioner.

 

I phoned to book my first appointment and the reception booked me and sent me a comprehensive questionnaire to complete before my first consultation. She recommended that I check my mineral levels and this could be done via a simple hair sample. I decided to go ahead with this because I thought that the more information the nutritionist would have the better able to advise. I filled in the questionnaire which was very interesting because it really made me think about my health and my diet! I must admit I was quite shocked when I saw my diet in black and white because it was very low in fresh food and far too much coffee and sugar! I found that I was constantly craving these foods so I would just give in.

 

My first appointment with the nutritionist was great – really motivating and I felt that I was being listened to finally! She explained that no definite cause has been established with PCOS but it has been suggested that the problem stems from the ovaries, which are unable to produce the hormones in the correct proportions. This in turn gives the message to the pituitary gland that the ovaries are not working properly and this gland then releases high levels of a hormone called Luteinising Hormone (LH) which results in an irregular cycle and low progesterone. Another reason is that some women just simply can’t deal effectively with the level of hormones which then gives rise to higher oestrogen and testosterone. Blood sugar imbalance has also been linked with PCOS which gives rise to the weight gain and high testosterone. The more insulin that is circulating will encourage the ovaries to produce even more testosterone and so the cycle continues. The nutritionist explained that the conventional approach is to recommend the contraceptive pill and/ or a drug called metformin which is given to Type II diabetics to control their blood sugar. She explained that treatments like the Pill are only going to mask the underlying hormone imbalance and yes it would bring a regular but artificial cycle back for me, but usually reverts back once it is stopped. Metformin comes with digestive disturbance like nausea and diarrhoea, plus there is no scientific evidence to suggest that it does actually help with PCOS! I knew now more than ever that I wanted to support myself naturally.

 

The nutritionist pointed out that my diet was too high in starchy carbohydrates, i.e. white bread and white rice and lots of sugar and caffeine. I explained that I felt I needed these because I was craving them but she said this in fact is very common when blood sugar levels are unstable. The more insulin being produced in response to an high starch/sugar and caffeine diet the more likely the body will develop ‘insulin resistance’ whereby our cells cannot utilise the sugar and it then gets converted and stored as fat. This is when the weight creeps up around the middle area. The higher insulin then leads to higher circulating testosterone. She suggested that I ate less starchy carbohydrates, avoiding altogether after 6pm and eating plenty of fresh vegetables and protein (fish, eggs, beans, quinoa and nuts and seeds). She gave me a menu planner to give me some suggestions, which was very helpful. The nutritionist asked me to reduce my coffee intake to 1 cup per day and to always have it alongside a meal so not on an empty stomach. She told me to slowly reduce it so I would not get a headache! She also said that I had to eat every three hours to keep my blood sugar stable as any longer would result in fluctuations which are not conducive to hormonal balance.

 

The nutritionist went through my hair mineral analysis results and it showed I was low in zinc and chromium. She explained that chromium is an important mineral for regulating our blood sugar and therefore reducing cravings for sugar and caffeine. She recommended I take a supplement of chromium (which would work in a similar way to metformin) to help address this deficiency. Zinc is key to the health of the reproductive system and plays a role in the regulation of blood sugar level. It is also needed to produce adequate levels of sex hormones.

 

She talked about herbs and how they can be very supportive for addressing the underlying hormone imbalance, having a ‘nurturing’ effect on the pituitary gland and ovaries. She prescribed me a formula containing black cohosh, agnus castus and milk thistle which would help to lower LH levels, support the liver and hopefully regulate my cycle. Alongside this, she recommended a good multi vitamin and mineral, a fish oil supplement and the chromium and zinc I was deficient in from the Hair Mineral Analysis.

 

I followed the diet for 8 weeks and in that time started to feel the day-to-day benefits. I had more energy, my skin seemed to be clearing and I had had a period! I couldn’t believe it as I hadn’t had a period for 3 months! I was so excited and at that point I went back for my follow up consultation. The nutritionist was extremely pleased with my progress and recommended that I continue the programme for another 8 weeks and then re-assess. She explained that the herbs would be a medium term support and after we had managed to reinstate a cycle, we could slowly take them away until the herbs could be stopped altogether.

 

After 16 weeks, my cycle had started to regulate and I had lost a significant amount of weight. I was delighted! I had lots of lovely comments from friends and family and this really encouraged me to continue with all my hard work. I am now a year on since visiting the Dr Marilyn Glenville Clinic and blood tests have shown that my hormones are getting back into balance and I have a 32-day cycle. I still have some excess hair but much lighter in colour so this is a positive sign.

 

All I can say is ‘thank you’ to The Dr Marilyn Glenville Clinic for supporting me and helping me get my hormones and life back on track. It is so frustrating when doctors only every recommend drugs when I know for myself that nutrition can really help.

 

My Comments

 

Julie’s story just shows how effective changing your diet and using highest quality supplements and herbs can help to balance female hormones. As we know from her story, doctors are quick to recommend the Pill but it simply suppresses the root cause of the condition and once the Pill is taken away, more often than not the hormone imbalance returns, often more severe.

 

Julie has made some excellent progress with her diet and she went from living on caffeine and sugar to now limiting these and eating an abundance of fresh fruit and vegetables and protein. This has really helped her to get where she is today. Although the supplements and the herbs have been very beneficial, it is the combination of everything that really works rather than just one aspect.  

 

If you are interested in having the test mentioned here please see the resources page.