HealthWise at 5 for 3.24 - KCBD NewsChannel 11 Lubbock


HealthWise at 5 for 3.24

African American Teens at Risk for Vitamin D Deficiency

African Americans tend to be at particular risk of a Vitamin D deficiency, because darker skin does not absorb as much of the sun's rays as light skin, which inhibits the body from producing Vitamin D. This comes from a study at Cornell Medical College in New York and is based on a study of nearly 3000 teens. Overall, 14% of the teens were found to be lacking in the vitamin but African American teens had 20 times the risk of Vitamin D deficiency.

Mental Exhaustion Leads to Physical Fatigue

Your workout might be a bit more difficult if your head is not in the game.  A study from the UK tested fatigue in people by wearing them out mentally then had them try a simple exercise.  They found that when people are mentally exhausted, it is harder to complete simple tasks.  Study participants whose brains were challenged before hopping onto a stationary bike hit a wall much sooner than people who started their exercises fresh.

Researchers think mental challenges might alter the brain's level of dopamine, which plays a role in motivation and they are hopeful this will give new insight into the study of chronic fatigue syndrome.

UV Light Helps Prevent Spread of TB   

A special type of UV light may help prevent the spread of tuberculosis in hospitals by up to 70%. TB spreads easily when an infected person coughs, spreading droplets of bacteria through the air.  Installing ultraviolet lights with fans to mix the air was shown to kill some of the bacteria, including the drug-resistant kind.  This British study involved powerful UVC rays, which are used in germicidal lamps to disinfect large areas.

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