Calories measure how much energy is contained in food or drink. The widely accepted rule of thumb is to eat 2,000 calories a day for women and 2,500 calories for men, but age can drastically influence how calories affect weight.

Forest bathing or Shinrin-yoku - spending time in woodland or other green spaces to reap health benefits - has been linked in several studies to significantly reduced risks for a number of chronic illnesses.

Your muscle mass naturally declines from your thirties onwards and accelerates once you hit perimenopause, as oestrogen levels drop. The good news is that it’s never too late to do something about it.

Smoking, drinking alcohol and being overweight are responsible for almost half of all cancer deaths worldwide, according to the largest study of its kind by the University of Washington’s school of medicine.