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. 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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Drones aren’t just cool little flying machines. They’re also extremely useful in many areas: scientific research, celebrity performances...they might even be able to help farmers grow crops!

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res-research 

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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