Curly kale has six times more calcium than broccoli and spinach and is loaded with antioxidants to boost immunity and has high levels of vitamin A, C and K. Just a 100g serving will provide 30 percent of the recommended daily amount of calcium to protect against osteoporosis.

If you’re eating in a restaurant or café, or ordering a takeaway, you can still eat less salt by making some smart choices.

• When you order a pizza, choose vegetable toppings instead of pepperoni, bacon, or extra cheese.
• At the sandwich bar, go for fillings such as hummous or poached salmon, instead of ham or cheese and pickle, which are usually higher in salt.
• If you’re having a Chinese or Indian meal, go for plain rice because this is lower in salt than egg-fried rice or pilau rice.
• Try not to have salty chips or crisps.
• When you have a salad, ask for the dressing on the side, so you only have as much as you need. Some dressings can be high in salt.

• Take regular breaks from the screen, at least five minutes every half hour.
• Switch the VDU off, rather than using the screensaver, when you are not using it.
• Sit as far away from the computer as you can, while still being able to sit comfortably and see properly.
• According to the Institute de Recherches en Geobiologie at Chardonne in Switzerland, which has investigated the effects of radiation of a variety of plants, a cactus called Cereus peruvianus will help absorb some of the VDU’s electromagnetic radiation.
• An ioniser on top of your desk may help.