Too much caffeine leads to crashes, and it can also disrupt your sleep. Many of us need that initial jolt to get started in the morning, but try to moderate the amount of caffeinated drinks you consume each day, says Henry Albrecht, CEO of employee wellness solutions company Limeade. Cutting down on caffeine intake, or setting a time of day when you stop drinking caffeinated beverages, can help you better manage stress. "Maybe after, say, 2 p.m., avoid anything with caffeine in it. That can affect your sleep later on in the evening, and if you aren't well-rested, that will add to your stress," says Albrecht. If you've already had your daily quota and a colleague asks you out for a coffee, opt for a decaf or switch to tea.