Among older people, dehydration is one of the most common hazards of hot, humid weather. See what you can save with the AARP Auto Buying Program. Recent studies have found that even mild dehydration comes with big consequences â from altered mood and impaired memory to headaches and constipation.
diurnal - of or belonging to or active during the day; diurnal animals are active during the day; diurnal flowers are open during the day and closed at night; diurnal and nocturnal offices. 2. diurnal - having a daily cycle or occurring every day; diurnal rotation of the heavens.
The word nocturnal means that an animal is active (foraging, hunting) primarily at night. Examples are owls, bats, and some mammals that avoid daytime predators. The term â¦ diurnal means that an animal is active during the daytime, and normally sleeps at night.oalas are nocturnal means that koalas are active at night, and  sleep during the day. The opposite of nocturnal is diurnal, meaning  active during the day. 2 people found this useful. Edit.