Burnout is not exhaustion. Exhaustion goes away with sleep. Burnout doesn't.
Real warning signs (any 3+ for 3+ weeks):
- Sleep that doesn't restore — 8 hours and you wake unrefreshed
- Loss of pleasure in things you used to enjoy (the company, hobbies, food, sex)
- Constant background irritability that you didn't have before
- Decision fatigue on small things — what to eat, what to wear
- Cynicism about the work — "what's the point" thoughts
- Withdrawal from people you care about
- Increased reliance on alcohol, weed, coffee, or stimulants
- Physical symptoms — back pain, headaches, digestion issues that have no medical explanation
Signs that look bad but usually mean something else:
- Working long hours during a launch — that's a launch, not burnout
- Stress about a fundraising round — that's normal anxiety
- Frustration with a co-founder for a week — that's a normal disagreement
The difference: burnout is persistent, not situational. If a vacation, weekend, or two weeks of light schedule fixes it, it was stress. If it's still there after — it's burnout.
The trap: founders normalise the signs because everyone around them has them too. The fact that your three founder friends are all burnt out doesn't mean you're not.