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Does your brain shrink if you don't drink water?

Prolonged dehydration causes brain cells to shrink in size and mass, a condition common in many elderly who have been dehydrated for years. Lack of mental clarity, sometimes referred to as “brain fog.”

fayazneurosurgery.com - How Dehydration Affects Your Brain - The Brain & Spine Institute

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Ever get a fuzzy-headed feeling making it hard to stay focused or concentrate on what you’re doing? If you’re finding that it’s hard to come with answers to easy questions, or you just can’t shake the fog that has enveloped your mind, you may be dehydrated. Research shows that there is a close link between drinking water and brain function. Approximately 70% of your body is composed of water. Nearly every body function you have is dependent water, but how much do you really need? According to the Mayo Clinic, the average adult loses more than 80 ounces of water every day through sweating, breathing, and eliminating wastes. So one has to wonder if you drink less than 80 ounces a day, how is that impacting your brain function and overall health?

Studies show that you only need to be 1% dehydrated to experience a 5% decrease in cognitive function. A 2% decrease in brain hydration can result in short term memory loss and have trouble with math computations. Prolonged dehydration causes brain cells to shrink in size and mass, a condition common in many elderly who have been dehydrated for years.

Mental symptoms of dehydration can include

Depression

Afternoon fatigue

Sleep issues

Inability to focus

Lack of mental clarity, sometimes referred to as “brain fog.”

The brain itself is made up of approximately 85% water. Water gives the brain energy to function including thought and memory processes. Water is also needed for the production of hormones and neurotransmitters in the brain. Since the brain cannot store water and you are constantly losing water through perspiration and other body functions, it’s essential that you continuously hydrate. You’ll be able to think faster, focus more clearly and experience greater clarity when your brain is functioning on a full reserve of water.

6 Tips to Stay Hydrated

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Is drinking 100% juice the same as eating fruit?

Drinking 100 percent fruit may juice sound like a healthy option, but it's a far cry from eating the real deal—whole, fresh fruit. In fact, new research finds that drinking just one glass of 100 percent fruit juice every day leads to gaining close to half a pound over three years.

stanfordchildrens.org - Fruit vs. Fruit Juice: What's the Difference?

Fruit vs. Fruit Juice: What’s the Difference?

Drinking 100 percent fruit may juice sound like a healthy option, but it’s a far cry from eating the real deal—whole, fresh fruit. In fact, new research finds that drinking just one glass of 100 percent fruit juice every day leads to gaining close to half a pound over three years. Yet increasing whole fruit intake by one serving each day resulted in about a pound of weight loss over three years. Why is eating whole fruit better for you than drinking juice? Here’s a look at how fruit juice affects your body and how it’s different from eating whole fruit.

The Sugar Problem

A single six-ounce serving of 100 percent fruit juice contains:

About 15 to 30 grams of sugar

60 to 120 calories

What’s more, fruit juice has very little fiber—even pulp in orange juice doesn’t provide much of the nutrient. The high sugar and low fiber content of juice means that it can spike blood sugar levels and increase your appetite. Over time, this combination can lead to weight gain. In the study of nearly 50,000 postmenopausal women, researchers found that weight gain among fruit juice drinkers was on par with those who regularly consumed sugary drinks like soda.

The Whole Fruit Solution

Whole, fresh fruit, however is full of fiber. Fiber-rich fruits can help you feel full while eating fewer calories. Dietary fiber in fruits can also help reduce cholesterol and may lower the risk for heart disease. Skip the straw and snack on fresh fruit instead. Here are some ideas to add more fruit into your diet:

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