Keerthy Suresh's 41-Hour Wake Highlights Sleep Deprivation Risks

An actress named Keerthy Suresh told people on Instagram that she stayed awake for 41 hours in a row.

She was moving between different movie shoots and worked almost 20 hours each day.

Between one job and the next, she only had about one hour to rest.

Sleep doctors say staying awake that long is very hard on the body.

After being awake for almost a day, your brain works as slowly as if you had drunk alcohol.

After a full day without sleep, your body can even fall asleep for a few seconds without you noticing.

That is called microsleep and it can be dangerous.

Not sleeping enough can also make you grumpy and hungry, and can weaken your body's defenses against germs.

That is why doctors say sleep is not a luxury, but something every person's body needs.