Science, Nature and Tech

Fact or Fable? Most body heat is lost through the head

Many people believe that you should keep your head covered during cold weather, as most body heat is lost through the head. It’s certainly true that any part of your body that’s exposed to cooler air will lose warmth; heat always moves from something warm to something cooler (that’s called the second law of thermodynamics). And our heads and faces are more sensitive to changes in temperature than other parts of the body.

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Science, Nature and Tech

Cellular Communications

When we talk about ‘cellular communcations’, we are not referring to use of a cell phone, because before mobiles or cell phones there was a time when this only meant cell to cell interaction within an organ or tissue. This important cellular behaviour drives diverse functions from contracting cells in your heart muscle to the cells in your nerves.

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Home, Health & Style

Have you ever wondered…about your teeth?

Have you ever had a tooth pulled out by a dentist? If you did, you may have noticed something odd. The roots were probably still attached to the tooth, unlike when a tooth falls out normally. What happens to the root of a tooth, how do teeth grow and why is it important that you take care of them? Samantha Gouldson investigates! 

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