In general, however, it usually takes about two hours for your body to rehydrate fully after drinking a significant amount of water. As for how you should rehydrate, water is the best choice. Sports drinks, such as Gatorade, can be helpful for athletes who need to replenish electrolytes.
For more mild or moderate cases of dehydration, expect your body to feel better after just a few hours, but full rehydration won't happen until about three days later. That's why even if you feel better fairly quickly, you shouldn't rush back into your regular routine.
The time it takes for your body to rehydrate depends on how dehydrated you are. If you are severely dehydrated, it's likely that you will be hospitalized and put on intravenous hydration for up to 24 hours to rehydrate your body, or until you're able to drink oral rehydration fluids yourself.
You may see the symptoms of dehydration improve in as little as five to 10 minutes. If you think your symptoms of dehydration are severe, don't hesitate to seek help! Dehydration can contribute to kidney stones, kidney failure and heatstroke, all life-threatening illnesses.
Drink an ORS Before Bed
Instead of drinking a glass of water, drink an oral rehydration solution like DripDrop ORS, which also contains electrolytes that are essential for hydration. Try to drink the ORS an hour or two before bed so you don't wake up in the middle of the night to use the restroom.
In general, however, it usually takes about two hours for your body to rehydrate fully after drinking a significant amount of water. As for how you should rehydrate, water is the best choice. Sports drinks, such as Gatorade, can be helpful for athletes who need to replenish electrolytes.
Milk is more hydrating than water
For example, milk was found to be even more hydrating than plain water because it contains the sugar lactose, some protein and some fat, all of which help to slow the emptying of fluid from the stomach and keep hydration happening over a longer period.
During work or exercise in the heat: • Drink 8-12 ounces of fluid every 15 minutes. Drinking more than 1.5 liters per hour is not recommended and may increase the risk for developing hyponatremia (low sodium).
You can usually reverse mild to moderate dehydration by drinking more fluids, but severe dehydration needs immediate medical treatment.
If you are experiencing severe dehydration, you might need up to 24 hours and intravenous fluids to relieve dehydration. The cause of dehydration also matters.
Drinking beverages that contain electrolytes can both rehydrate you quicker than plain water and it can keep you feeling hydrated longer than plain water.
In severe cases, dehydration can lead to shock or even death. If you or your child is vomiting, has a fever, or is unable to urinate, you should go to the ER right away.
Chugging large quantities of water isn't hydrating you any more than if you sip it slowly. It can seem like you're being proactive by gulping down a large amount of water before beginning some extraneous exercise.
Chugging as much water as you can all day is likely not the best or most efficient way to stay hydrated, and it's technically possible to overdo it. There is such a thing as overhydration that causes some unwanted and potentially dangerous side effects.
In fact, water may not even crack the top five of the most hydrating drinks out there. According to a study from Scotland's St. Andrew's University, milk, Pedialyte and soda top the list of most hydrating beverages.
Going to Sleep Dehydrated Can Cause Cramping
If you haven't had enough water during the day or before bed, you may experience cramping like this while you sleep, especially in your legs. This can be very painful, waking you up and keeping you from getting a good night's sleep.
Becoming dehydrated can affect sleep in various ways. Dehydration can disrupt the body's natural circadian rhythms, which can make you feel fatigued during the day but unable to fall asleep at night. Your body may have difficulty flushing out toxins without adequate water intake.
You can quickly check for dehydration at home. Pinch the skin over the back of the hand, on the abdomen, or over the front of the chest under the collarbone. This will show skin turgor. Mild dehydration will cause the skin to be slightly slow in its return to normal.
Dehydration can lead to severe complications, such as seizures, swelling of the brain, kidney failure, shock, coma and even death. Signs and symptoms of dehydration include: Headache. Dizziness or lightheadedness.
Tea (or Iced Tea)
You won't be surprised to learn that hot tea and iced tea are excellent hydrators—tea is a water-based beverage after all! Even caffeinated teas can still be hydrating.