If you've ever thought to yourself, "Why am I always so tired?",  you are not alone. Many women over 40 feel drained, even when they get enough sleep. The truth is, it's not just aging-there are real reasons your energy may be slipping, and the good news is, most of them can be improved.

Here are 7 surprising causes of fatigue in women over 40, plus simple steps to help you feel like yourself again.

1. Chronic stress and cortisol overload

Stress isn't just in your head-it shows up in your body. When stress hormones like cortisol stay high for too long, your system eventually crashes, leaving you exhausted. Small changes like daily walks, deep breathing, or short breaks can help reset your stress response and give your energy a boost.

2. Hormonal changes after 40

As we move into perimenopause and menopause, hormones like estrogen and progesterone naturally shift. These changes can affect mood, sleep, and energy levels. While some changes are normal, supporting your body with balanced meals, movement, and good sleep habits can ease the load.

3. Poor sleep quality

You might be getting your 8 hours, but if your sleep isn't deep and restorative, you'll still feel tired. Stress, caffeine, late-night screen time, and even hormone shifts can all affect sleep quality. A calming bedtime routine and less blue light before bed can make a real difference.

4. Nutrient deficiencies

Low iron, Vitamin D, and B12 are common in women over 40 and can leave you feeling constantly fatigued. If you suspect this, talk to your doctor about testing, and consider adding more nutrient-rich foods to your meals.

5. Blood sugar swings

That mid-afternoon crash? It's often the result of high-sugar or carb heavy meals that spike your blood sugar, then drop it suddenly. Adding more protein and fiber (especially for breakfast), can keep your energy more stable throughout the day.

6. A sedentary lifestyle

It seems backwards, but moving more actually helps fight fatigue. If you're sitting most of the day, even short bursts of activity like stretching, walking, or resistance bands can improve circulation and energy.

7. Emotional burnout

The mental load of midlife-juggling family, career, and changes in your own body, can drain you emotionally, which shows up as physical exhaustion. Building in small self care rituals, time for yourself, and even saying "no" more often can help refill your energy tank.

The bottom line

Feeling tired all the time isn't just "part of getting older." There are real causes-and real solutions. By paying attention to stress, hormones, sleep, nutrition, and lifestyle, you can start to rebuild your energy and feel more like yourself.
If you're ready for a step-by-step plan to reset your energy and lower stress hormones, grab a copy of Cortisol Detox for Women. It's designed to help women over 40 take back control of their health, one simple step at a time.