Lack of sleep
Make sleep a priority if you want to make sure your mood is as good as possible. Aim for seven to nine hours a night, rather than the five or six that many adults get. “Sleep is critical for proper mental health, so when you’re fatigued you get irritated,” says Steven Lamm, MD, clinical professor of medicine and medical director of the Preston Robert Tisch Center for Men’s Health at NYU Langone Medical Center. “It’s like a baby crying—you put them to sleep and they feel better. It’s the same thing.” If you’re still feeling out of sorts after getting enough sleep, learn how to calm down when you’re feeling agitated with these 24 tips.
When you start forgetting small things, like conversations or where you put your keys, it’s natural to become frustrated and snappish. “Generally I think of frustration as having to do with when needs don’t get satisfied,” says Jeffrey Deitz, MD, a psychiatry specialist with a private practice in Fairfield County, Connecticut. “Frustration can manifest with something that looks very much like irritability and outbursts to an outsider.”