Sleep disruptions have unexpected and serious impacts on the health of your brain. Dr. Ana Krieger, Chief of Sleep Neurology at Weill Cornell Medicine, explains why snoring is a danger sign for sleep apnea affecting 40 million Americans -- and why "getting by" on 6 hours of sleep a night is a risk you probably shouldn't take.

The best prescription for reducing inflammation, cholesterol, and weight is right on your plate. Cardiologist Hooman Yaghoobzadeh, MD, explains the science of eating well, and how the right foods are life enhancing and will actually change your genetics.

The science behind the benefits of a plant-based fiber diet will motivate many of us to make important lifestyle changes. Cardiologist Hooman Yaghoobzadeh, MD, explains why eating less meat, less processed food, and more fiber is so good for your heart and brain.

Sexual attraction starts with a whiff of signals that gets your motor running. Your nose -- and brain – are behind your gender, sexual orientation, and choice of partner. Kayt Sukel explains how the brain rules when it comes to sex and love.

A tremor had plagued Alexandra Lebenthal since childhood. Today her hand is steady and she can finally hold a glass with ease, thanks to Dr. Michael Kaplitt and a life-changing new procedure called MR-guided focused ultrasound.

Dr. Barry Kosofsky explains why children – especially girls – are at greater risk for concussion, and why kids under 14 should never play tackle football and certain other contact sports. Learn how to recognize the signs of concussion, when to go to the ER, and why kids with ADHD or anxiety tend to do worse when they have concussions.

Memories return – along with a surge of confusing emotions – after Demetri's surgery to remove a craniopharyngioma. Dr. Jeffrey Greenfield joins his patient and Dr. Stieg to talk about revelations after brain tumor surgery: Demetri learns the value of surrender while his neurosurgeon develops a better understanding of his role in his patients' lives.

When Demetri Kofinas was diagnosed with a benign pituitary tumor, he faced bizarre symptoms and difficult choices. With the help of his father and Dr. Jeffrey Greenfield, Demetri took on the challenges and came to a decision.

Dr. Stieg talks to psychiatrist Richard Friedman, MD, about depression and PTSD: How they are different from sadness, how the brain actually changes when someone is depressed and when they come out of it, and how therapy and medication work. Plus... identifying those at risk for suicide, and getting them help

Dr. Stieg talks to psychiatrist Dr. Richard Friedman about the neuroscience of fear: How parents can transmit anxiety to their kids, how some babies seem hard-wired for anxiety, and why a little anxiety is good for you (but too much is like a burglar alarm that sounds all the time).