Whether you skip caffeine to get a better night’s rest, or just wake up slowly, here’s a quick way to activate your brain and give yourself an energy boost. It can help you beat that mid-afternoon slump, or to just get going in the morning. If you’re doing it in the office, find a quiet place, like an unused corner or stairwell. Stand up straight, arms gently at your sides. Leaving your elbows pointing down, raise your hands up to shoulder level. Now, inhale deeply and raise your hands and arms straight up over your head. Quickly exhale and lower your arms. Repeat for 30 seconds, or until you’re re-energized.