Showing results for: Health & Human Body

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. Still, more than 70 years after Grand Rapids, Michigan, became the first city to fluoridate its drinking water, the practice remains controversial. Some worry that fluoridated drinking water can lead to health issues, but what is the scientific consensus? (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. I supervise students from the undergraduate through to the postdoctoral level. As well, I work as a physiatrist at McMaster Children’s Hospital.

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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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Chocolate doesn’t necessarily cause acne. And it has some health benefits that might surprise you. It all comes down to understanding what’s in chocolate and how it affects your body.

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In clinic, I use my understanding of functional human anatomy and body mechanics to help diagnose and treat issues with muscle, joints and nerves. A key role is patient education and helping patients take an active role in their own recovery. On a daily basis, I work very closely with other health care providers. As a health care consultant, I work with case managers and medical and health consultants to help injured workers recover from injury.

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