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Nora Volkow, head of the National Institute on Drug Abuse calls the phrase “Just Say No!” “magical thinking.” It appears that dopamine is one of the main chemicals regulating the pleasure center of the brain. At the most basic level, it regulates motivation—it sends signals to receptors in the brain saying, “This feels good!” Whether you’re a heroin addict and you see an association to heroin, you’re a caffeine addict and you see a cup of coffee, you’re a phone addict and you see another person pick up their phone, or you’re hungry and you see some good-looking food, your brain rushes with dopamine and that is now caught on brain-scanning machines....

Colors to Try After Asking, “What Color Is My Hair?” Colors to Try After Asking, “What Color Is My Hair?” 1. Jet Black Go as dark as you can by opting for a jet black shade of hair color. This shade is bold and beautiful and looks especially striking against pale skin. The great thing about this hair color is that while it works particularly well with pale skin, it flatters all skin tones across the board....

According to research, yes. Imagine this: you walk into the laboratory, and are a shown a series of 20-second video clips. In each clip, a different person is shown listening to another person. You can’t hear what the speaker is saying; there is no sound to the clip. But you’re told that the speaker is talking about a time when they suffered. The researchers ask you to rate how compassionate the listener is, just by what you can see: his or her body language and facial expressions....

First off, some definitions—not to be Captain Obvious, but some guys don’t even know if they’re already sporting this cut, as it can come with various nuances. If you have a haircut with a hard part and have used a comb and product to style your hair, chances are you’ve got some version of comb over hairstyles. To be even more specific, it’s a style where the hair is left long on the top or crown of the head and is then brushed over or slicked back to one side, usually following your natural part....

10 Trendy Spring Hairstyles 10 Trendy Spring Hairstyles 1. Wavy Bob Use your hair straightener to create flat iron waves to add some volume and texture to a classic bob. As we ease into the air dry season of salt water and sunny days, you can wear a short textured style with confidence. 2. Trendy Hat You can easily get in on this trend no matter your hair length or texture....