If you’re a student, welcome back to school! Sharp pencils, packages of shrink-wrapped lined paper, and fresh haircuts are sure signs of a new school year. No more late nights stargazing or watching Netflix. It’s time to settle in with textbooks and homework. Survival Tips Whether you’re in fifth grade or college you need a good night’s sleep. Light from a TV or computer screen can affect melatonin production. That’s the hormone that regulates your sleep cycle, also known as circadian rhythms. Turn off all screens two hours before you plan to sleep. That includes your cell phone! Stay active. If you find yourself sitting for more than an hour,…