What time you should stop drinking liquids before bed

2022-10-05 21:43:16
What time you should stop drinking liquids before bed

Have you ever guzzled a tall glass of water right before bed and then had to get up to use the bathroom in the middle of the night, or struggled to doze off after having an after-dinner espresso?

Drinking enough liquids each day is crucial to staying hydrated, but when you drink different types of beverages throughout the day matters. Drink too much of anything too late, and it could affect your sleep.

Amy Bragagnini, a spokesperson for the Academy of Nutrition and Dietetics, said dietitians constantly counsel patients on how to get enough fluids— which is 15.5 cups a day for men and 11.5 cups for women, something most people don’t achieve. A key part of that is discussing the timing of drinking liquids, so she often asks her patients: “What time do you typically go to bed?”

“The answer to this helps us provide information that will not only help patients meet their fluid goals but will also set them up for a good night’s sleep,” she said. “We realize not everyone works a typical 8 a.m. to 5 p.m. job and goes to bed around 10 p.m.”

Drinking too much of any kind of fluid before bed can affect your sleep cycle, Bragagnini said. A good night’s sleep is crucial for reducing your risk for obesity, heart disease, stroke, depression, and your overall mood and ability to function each day.

Since about 70% of Americans admit they don’t sleep well at least sometimes, it’s a good idea to understand the role that what you drink (and when) plays in sleeping well. Bragagnini urges her patients to stop drinking most fluids at least two hours before bed, but the best time frame depends on what you’re drinking.

Here’s a closer look at when to stop drinking different types of beverages and why adhering to these cutoff times will help you get a good night’s sleep.

Caffeinated Drinks

It may be tempting to drink coffee or another caffeinated beverage to get through a sleepy afternoon. But the later you drink caffeine, the more it can affect your sleep. Having more than 400 mg of caffeine a day — the equivalent of about four 8-ounce cups of coffee — can cause restlessness, dehydration, anxiety and insomnia.

To get a good night’s sleep, research suggests it’s a good idea to stop drinking caffeine at least six hours before bed, said Chris Winter, sleep expert, neurologist and adviser for Somnox.

“Caffeine can act as a stimulant, which can disrupt the depth of sleep and affect how long one stays asleep,” Bragagnini said.

Juice And Other Sugary Drinks

Drinking too many sugary beverages before bed isn’t recommended, Bragagnini said. Consuming sweetened drinks, like sodas or juice, in the evening will raise your blood sugar, which triggers your pancreas to release insulin, a hormone that allows glucose into your cells to provide energy.

This sugar rush could keep you up at night. So, it’s best to avoid sugary drinks at least two hours before bedtime.

Consuming too much sugar— more than 9 teaspoons a day for men and 6 for women — at any time of day can increase your risk of insulin resistance, which raises your risk for diseases like cancer and diabetes.

Dairy

You’ve probably heard that drinking a glass of warm milk before bed can help you sleep. Some research suggests that a mix of milk and honey could improve sleep and that drinking milk could help older people fall asleep. Milk also contains tryptophan, an amino acid known to cause drowsiness.

“The research on the benefits of drinking milk before bed is limited,” Bragagnini said. “Some researchers urge caution about consuming dairy products before bed.”

Consuming dairy before bed could increase the likelihood of gastroesophageal reflux disease (GERD), which causes acid from the stomach to flow into the esophagus causing acid reflux, she said.

Cutting out dairy at least two hours before bed is a good option for most people — though if you swear that a cup of warm milk helps you drift off to sleep, there’s likely no harm in it. Just make sure you brush your teeth afterward, as the sugar in dairy could cause cavities if it’s left on your teeth, Winter said.

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