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In older times and in developing countries earthquakes would frequently knock over wood and coal-burning stoves. In modern communities fires can start when earthquakes rupture gas lines.
Aging! Getting older!
We are - usually - born with mobility. It means the ability to move. You probably mean "What causes impaired mobility in older people" and the answers to that are several... age brings things like rheumatism (inflammation and swelling of the joints and muscles), arthritis (swelling and or stiffness in joints), osteo-arthritis (degeneration of joint cartilege and bone) .... all painful ailments which make it difficult to move, and which make a person unwilling to move too much.
Older people get anemia for unknown official reasons. However, anemia in older people has been linked to iron deficiency as well as inflammation. Keeping iron intake up and keeping a healthy diet will help lower the risk of older people becoming anemic.
Their bones naturally losing (some) strength.
mainly just loss of appetite...
mainly Stress in your life causes Wrinkles
The free radicals in the tobacco smoke rupture the membranes in your skin cells and causes your skin to wrinkle and go leathery. You look a lot older than you really are, but you are not really bothered too much because you will die of cancer soon anyway. All that happened to me, but I recovered and now look only a bit older than I really am, but anybody that smokes through choice is nuts!
True. There are blood capillaries within the red pulp of the spleen. Older, more fragile red blood cells may rupture as they pass through these capillaries and the resulting cellular debris is removed.
Because as you grow older, your reflexes start to worn out this causes them to become slow
Presidents look older over time because they have experienced stress of the politics and all the things a president has to do. Stress and depression causes you to look older.
when you crack your fingers, your fingers can't bend when you're older.