Many of us don’t start our day with coffee. I (Jen) am SUPER sensitive to caffeine. As in, I drink any and it’s still in my system keeping me awake 12+ hours later. I’ve made the mistake of drinking caffeine, in the form of an energy drink or soda, too late in the day and paid the price by being up…all…night…long.
Because of this, I try really hard to avoid using caffeine. But sometimes I’m still tempted to reach for an energy drink when the afternoon crash hits. Sometimes I don’t even make it to the afternoon and it’s mid-morning when I need the pick-me-up because my brain feels foggy and my energy has disappeared.
Sometimes I just need something to get through the rest of the day.
But I’ve often wondered whether caffeine raises cortisol and if I’m really doing my body more harm than good.
As I’ve taken a dive into the research, I’ve realized that the answer is yes.
Understanding what’s happening inside my body has helped me learn how to support my energy instead of constantly fighting fatigue or giving in and caffeinating myself just to make it through the day. Here’s what I’ve learned and what I’ve learned to do instead.
What Caffeine Does to Your Stress Hormones
Caffeine is a stimulant that activates your nervous system.
When you drink caffeine — whether from coffee, soda, or energy drinks — your body releases stress hormones to increase alertness and mobilize energy.
One of those hormones is cortisol.
Cortisol raises blood sugar slightly and increases focus so your body can respond to a challenge. That’s why caffeine can make you feel more awake and productive.
But caffeine doesn’t create energy.
It temporarily borrows energy from your stress response.
And when that pattern repeats throughout the day, your nervous system can start relying on stimulation instead of steady energy.
Why Energy Drinks Can Make Cortisol Problems Worse
Not all caffeine is created equal. Energy drinks often contain much higher caffeine levels than coffee, and many include additional stimulants like guarana or taurine.
For a nervous system that’s already stressed or exhausted, this can push cortisol even higher.
Over time, this pattern may contribute to symptoms many women recognize:
- Feeling “wired but tired”
- Afternoon crashes
- Anxiety or jitteriness
- Trouble falling asleep
- Waking during the night
- Dependence on stimulants to function
The energy boost feels helpful in the moment, but it can deepen the cycle of fatigue and stress hormones.
I like to think of it as a band aid to fix a temporary problem but only makes the deeper problems worse. And it’s those deeper problems that I’m trying really hard to fix.
Why the Afternoon Energy Crash Happens
Many women assume the afternoon crash means they need caffeine.
But often it’s a signal from the body that something foundational is missing.
Common triggers include:
- Not eating enough protein earlier in the day
- Skipping meals
- Blood sugar fluctuations
- Chronic stress
- Poor sleep the night before
When your body runs low on stable fuel, it sends fatigue signals. Energy drinks override those signals temporarily, but they don’t solve the underlying problem.
Supporting Energy Without Constant Stimulants
So, what do we do about it? If you’re like me, you know you don’t want to rely on the “band aid” but don’t know what to do instead.
If you’re dealing with cortisol imbalance or chronic fatigue, (yep, that’s me!) supporting your body earlier in the day can reduce the need for stimulants later.
Simple shifts that can help many of us include:
- Eating protein at breakfast
- Eating regular meals instead of skipping them
- Getting morning sunlight
- Taking short movement breaks during the day
- Going to bed earlier when possible
These may sound basic, but they create the stability our nervous systems needs to produce natural energy.
Your Body Isn’t Lazy — It’s Asking for Support
When you feel like you need an energy drink just to function, it doesn’t mean you lack discipline. It usually means your body is trying to compensate for stress, poor sleep, or unstable fuel. Caffeine can temporarily cover that signal. But real, steady energy comes from rhythm — stable blood sugar, a calm nervous system, and enough rest to recover.
And when those foundations improve, the constant need for stimulation usually fades. So, let’s go, we’ve got this!
