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Author Question: Central mechanisms cause contraction and increased resistance to blood flow mainly through which of ... (Read 37 times) |
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.
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.
In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.