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  2. Heat syncope - Wikipedia

    en.wikipedia.org/wiki/Heat_syncope

    Physical activity in extremely hot weather should be avoided. If a person starts to experience over heating, and symptoms of heat syncope, they should move or be moved to a shaded or cool area. It is also recommended to avoid alcoholic beverages in hot weather, because they cause dehydration which may worsen symptoms.

  3. Dehydration - Wikipedia

    en.wikipedia.org/wiki/Dehydration

    A 5-8% decrease can cause fatigue and dizziness. Loss of over 10% of total body water can cause physical and mental deterioration, accompanied by severe thirst. Death occurs with a 15 and 25% loss of body water. [4] Mild dehydration usually resolves with oral rehydration, but severe cases may need intravenous fluids.

  4. What older adults need to know about hydration

    www.aol.com/lifestyle/2019-09-02-what-older...

    Weather. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us. Sign in. ... The first, and perhaps most perplexing, cause of dehydration in older adults is a lack of ...

  5. Communications blackout - Wikipedia

    en.wikipedia.org/wiki/Communications_blackout

    The communications blackouts that affect spacecraft re-entering the Earth's atmosphere, which are also known as radio blackouts, ionization blackouts, or reentry blackouts, are caused by an envelope of ionized air around the craft, created by the heat from the compression of the atmosphere by the craft. The ionized air interferes with radio ...

  6. This Is How Dehydration Can Affect Your Blood Pressure - AOL

    www.aol.com/dehydration-affect-blood-pressure...

    Weather. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us. Sign in. ... Dehydration can cause your blood pressure to drop and then sometimes rapidly increase in response.

  7. The #1 Dehydration Mistake Almost Everyone Makes ... - AOL

    www.aol.com/1-dehydration-mistake-almost...

    Dehydration has more extreme symptoms. Gervacio says this can include rapid heartbeat, low blood pressure, dry skin, little or no urine, very dark-colored urine, weakness and being extremely thirsty.

  8. Syncope (medicine) - Wikipedia

    en.wikipedia.org/wiki/Syncope_(medicine)

    This may be due to blood loss, dehydration or third-spacing. On standing the person will experience reflex tachycardia (at least 20% increased over supine) and a drop in blood pressure. On standing the person will experience reflex tachycardia (at least 20% increased over supine) and a drop in blood pressure.

  9. Management of dehydration - Wikipedia

    en.wikipedia.org/wiki/Management_of_dehydration

    Dehydration can occur as a result of diarrhea, vomiting, water scarcity, physical activity, and alcohol consumption. Management of dehydration (or rehydration) seeks to reverse dehydration by replenishing the lost water and electrolytes. Water and electrolytes can be given through a number of routes, including oral, intravenous, and rectal.