So, you’ve finally accepted that you need to make some changes in your life. You’re spending too much time watching TV when you should be working or studying, and you have a few bad habits that are affecting your health and wellbeing such as drinking too much alcohol and eating too many take-aways. You’re motivated to make changes… but do you have the willpower to follow through and achieve your goals?

Our bodies need cholesterol to function properly, but not too much. The waxy, pale yellow fat is found in our blood, and is crucial to the production of cell membranes, vitamin D, hormones (including testosterone and oestrogen), and fat-dissolving bile acids.

Unfortunately, around half the adult population in most developed countries do have too much cholesterol, usually as a consequence of consuming excessive amounts of saturated fat in the form of meat, dairy, and processed foods such as pies, burgers, cakes, and ready meals.

Sleep should be a natural human activity, done without thought and without difficulty. However, many people have problems with their sleep patterns that affect their overall wellbeing and their ability to function effectively during the day. Scientists are beginning to study these problems closely to determine ways to correct them, and this is leading to increased interest in circadian rhythms.