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Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

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Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

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Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

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A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

Conjugate acid-base pairs consist of a proton donor and a proton acceptor Conjugate acid-base pairs consist of a proton donor and a proton acceptor
The titration curve of acetic acid The titration curve of acetic acid
Different Amino Acid Structure Different Amino Acid Structure
Acid–Base Balance Acid–Base Balance
An acetic acid solution is 6.00 M and has a density of 1.04 g/mL. What is the ma An acetic acid solution is 6.00 M and has a density of 1.04 g/mL. What is the ma
Average Precipitation Acidities and the Effects of Acid Rain Average Precipitation Acidities and the Effects of Acid Rain
Video: T cell receptors

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