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Herpes and Alzheimer's

Scott LaFee on

New findings in a lab model of the herpes simplex virus HSV-1 suggest it might cause Alzheimer's disease. Researchers used mini-3D models of the human brain that were infected by the herpes virus (which causes cold sores).

The brain organoids went on to develop the hallmarks of Alzheimer's including amyloid plaques and neuroinflammation. They were also less efficient at conducting electrical signals.

The findings support the "microbial theory" that Alzheimer's is likely caused by pathogens infecting the brain.

Young Love

According to the Centers for Disease Control and Prevention, approximately 40% of U.S. teens have had sex by the time they are 19. Broken down, that translates to 42% of girls ages 15 to 19 and 38% of boys in same age group.

The rate for girls remains steady going back to 2002; it's a decline among teen boys.

 

Body of Knowledge

Human tears are approximately 0.9% salt. Seawater is 3.5% salt.

Get Me That, Stat!

Looking better: New data from the nation's emergency rooms shows that eye injuries from fireworks have decreased 50% over the past 20 years, from a high of 3,000 in the year 2000 to 1,500 in 2017. For obvious reasons, July typically has the highest number of injuries, followed by January and December. Burns to eyes, usually caused by firecrackers and bottle rockets, were the most common injury.

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