what causes low energy levels

Low energy levels can come from everyday habits, a medical issue, or a mix of both. Common causes include poor sleep, stress, an unhealthy diet, too little or too much exercise, alcohol or drug use, and certain medicines.

Common causes

• Not enough sleep or poor-quality sleep.

• Stress, depression, grief, or other emotional strain.

• Eating poorly or not getting enough nutrients.

• Too little physical activity, or sometimes overtraining.

• Alcohol, drug use, or side effects from medicines.

Health-related causes

Sometimes low energy is a sign of a condition that needs treatment, such as anemia, thyroid problems, diabetes, sleep apnea, chronic infection, heart disease, kidney disease, or depression.

When to get checked

If the tiredness keeps going for weeks, is getting worse, or affects daily life, it is worth talking with a doctor.

Examples that need attention sooner include tiredness with shortness of breath, palpitations, pale skin, unusual thirst, weight loss, or loud snoring with daytime sleepiness.

What often helps

A regular sleep schedule, better sleep habits, balanced meals, hydration, and steady exercise can improve energy when the cause is lifestyle-related.

TL;DR: Low energy is most often linked to sleep, stress, diet, activity level, or medicines, but it can also point to an underlying condition like anemia, thyroid disease, diabetes, or sleep apnea.