Showing results for: Health & Human Body

Scientists can use GWAS results to learn all kinds of things about you from your genes. One day, doctors may even use this information to personalize your medical care.

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Learn about how and why we itch. (4:43 min.)

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From sunburns to skin cancer, there are many ways the sun’s rays can hurt you. Understanding how sunscreen works can help you protect yourself properly.

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When you cut your finger, a complex, three-level system kicks in to make sure you stay healthy and ward off invaders.

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Your smartphone, tablet and other devices emit large quantities of blue light wavelengths. This tells your body "wake up!" when you should be getting ready to sleep. (2:50 min.)

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It’s in our tap water, toothpaste and even in tea. Fluoride has helped reduce cavities in children for decades but some worry that fluoridated drinking water can lead to health issues. What is the verdict of the scientific community? (3:14 min.)

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In people with synesthesia, stimulating one sense leads to the stimulation of another. Letters might always have a certain colour, or subway stations might have a taste!

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I’m the Director of CanChild. I’m also Professor in the Department of Pediatrics and hold the Scotiabank Chair in Child Health Research at McMaster University.

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Here’s a conundrum: Identical twins originate from the same DNA ... so how can they turn out so different — even in traits that have a significant genetic component? (5:02 min.)

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Your cells may be tiny, but they can do some pretty complex tasks to keep you alive. That’s because your cells, like the cells of every living organism, have specialized proteins constantly hard at work.

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