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Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.
Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.
Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.
According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.
![(a) Savanna baboons live in female-philopatric groups, among which males migrate. (b) Chimpanzees li](https://biology-forums.com/gallery/47/medium_269691_26_01_15_5_55_23_20433921.jpeg)
![(a) Male competition can be fierce. (b) This male baboon has bite wounds suffered in competition wit](https://biology-forums.com/gallery/47/medium_269691_26_01_15_5_55_25_204431297.jpeg)