New test can determine Alzheimer’s risk with just one teaspoon of saliva. The test also reveals a novel way to prevent the disease.

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Researchers found that a lack of sleep disrupts hormone levels and leads to insulin resistance, which can lead to diabetes. Treating sleep problems can prevent these issues and even help reduce the effects of a poor diet.

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Researchers found that “even one night of restricted sleep can cause insulin resistance.” Insulin resistance is one of the factors that causes type-2 diabetes. It occurs when the body doesn’t properly use the hormone insulin. So why would a lack of sleep cause the body to become resistant to insulin? The answer, these researchers discovered, is due to an imbalance between the hormones testosterone and cortisol.

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B12 plays a big role in cell energy, so low levels can affect your hair. As the cells in hair lose energy, people may experience premature graying and significant hair loss. Restoring B12 levels can return hair color to normal and restore hair growth.

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A novel nutraceutical called nicotinamide riboside has been found to kick-start the same biological pathways as calorie restriction does, and boost arterial health in people with mild hypertension.

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