Dehydration happens when your body gets rid of more fluids, usually through sweating or going to the bathroom more than normal, than it absorbs. Drinking too little water during exercise, hot weather, or daily activities can also cause the body to use up its stored water.
Nocturia is defined as the excessive need to get up and urinate during the night. 1  You may find yourself using the bathroom several times per night and this can be disruptive to your sleep. It is generally considered to be abnormal to wake to urinate when it occurs more than once at night.
When you let the rhythm wake you up naturally, you feel alert because you were ready to stop sleeping. When an alarm forces you to wake up before your body is ready, you feel groggy, as you may have interrupted a deep stage of sleep. To stop using an alarm, you need to create a consistent rhythm from day to day. If you go to sleep around the same time every night and, before drifting off, tell yourself when you need to wake up in the morning, you can actually train your body to come to at the right time. But this wonât work if youâre exhausted.