If your morning routine starts with a coffee before anything else touches your lips, you're not alone. But if you're navigating perimenopause, you may have noticed your body reacting to that first cup a little differently than it used to — more jitters, a racing heart, an energy crash by 10 am, or sleep that's harder to come by. So is it actually okay to drink coffee on an empty stomach during this life stage? Let's break it down.