 by Matt Gillman, MD, SM When you hear the word primordial, does it bring to mind 1) a primeval ooze or 2) the ability to keep babies healthy for a lifetime? If you are interested in #2, read on...
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 by Renata Smith, MPH We already know that lack of sleep is bad for your health. Chelsea Jenter and Elizabeth Cespedes highlighted how screen time limits sleep and that poor sleep is associated with obesity, poor cognition, and children’s behavior. Much of this prior literature has focused on the impact of television screen time on children’s sleep, especially the presence of TVs in children’s bedrooms. But what about small screens (smart phones, iPads, iPods, etc.)?
 by Avik Chatterjee, MD When I first met him, Mr. Smith had just moved into a motel room re-purposed as a homeless shelter, with his four children. He was anxious and distracted, his eyes darting from me to the door, to the children’s clothes folded up on the bed.
“This morning I had to get my kids to school, meet with my housing worker, figure out why MassHealth won’t accept my application, and to top it all off, I know my blood pressure and blood sugar are out of control. Doc, I won’t lie to you, life’s been so difficult this past year, I haven’t taken my medications at all.”  The FDA recently released two new regulations that provide instructions to restaurants, grocery stores, vending machines and other food establishments for how they will have to comply with the law compelling them to post calories on menus. The idea motivating this law and regulations is that if consumers are aware of the calories of their purchases, they may make lower calorie choices. Is this true? Does the posting of calories or other nutritional information affect consumer choice? And if so, does the nature of the posted information make a difference?
 by Lauren Fiechtner, MD As mammals we have two different types of fat tissue: white and brown. White fat stores energy and plays a role in how full we feel. Brown fat helps regulate the body’s temperature by releasing heat. In mice brown fat has been linked to improved insulin sensitivity and decreased body weight. In humans brown fat has been associated with lower BMI. So we think brown fat is healthier and more efficient than white fat.
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