Articles on Genetics

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Naloxone is often used to revive people overdosing from opioids. REUTERS/Brian Snyder

Why genetics makes some people more vulnerable to opioid addiction – and protects others

Scientists are just starting to understand how your parents' genes and experiences might shape your own susceptibility to dangerous drugs. Could that help to stop addictions before they start?
Watching bacteria and viruses duke it out, evolving to outwit each other. UC San Diego

Discovery of a surprise multitasking gene helps explain how new functions and features evolve

A core idea in molecular biology is that one gene codes for one protein. Now biologists have found an example of a gene that yields two forms of a protein – enabling it to evolve new functionality.
Most Canadians eat at least double the daily adequate intake of sodium. And, shockingly, 93 per cent of children aged four to eight exceed Health Canada’s Tolerable Upper Intake Level. (Shutterstock)

Dietary salt, the silent killer: How much is too much?

Most men, women and children in Canada exceed the tolerable upper limits of salt for their bodies. Consumers need to understand how much salt is too much -- to avoid hypertension and heart disease.
Elementary schools provide excellent targets for interventions to prevent obesity as children spend much of their day and consume many of their calories at school. (Shutterstock)

Is your child’s school an obesity risk?

Research shows that children attending schools with low-quality food environments, in poorer neighborhoods, gain more central body fat -- putting them at risk of obesity and cardiometabolic disease.
A scientist works with DNA samples in a New Orleans laboratory in 2011. (AP Photo/Gerald Herbert)

You’ve got your DNA kit: Now what can you do with it?

The rapid growth of genetic testing and data-gathering could revolutionize health and medicine if governments work to protect people against privacy and societal risks.

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