"Hi, I'm Brit Hertz! Follow along as I take on fun gymnastics-based challenges, pull pranks on my boyfriend, and have an overall blast with my friends." ...

"Hi, I'm Brit Hertz! Follow along as I take on fun gymnastics-based challenges, pull pranks on my boyfriend, and have an ...

How do you test the reactions of your sensory neurons? Go for a swim in the sea after acclimatising to the cold weather, or is it better to warm up first? Dr. Chris and Dr. Xand put it to the test.