Tigers DO live in the 'jungle', so are harder to find. In the wild, the two do not meet, so there was always a question as to who was the stronger. The lion LOOKED bigger, so was assumed to be stronger, but lions and tigers have different muscle structure, since lions run more in life, and tigers climb more.
Sleep Hygiene The most common cause of insomnia is a change in your daily routine. For example, traveling, change in work hours, disruption of other behaviors (eating, exercise, leisure, etc.), and relationship conflicts can all cause sleep problems. Paying attention to good sleep hygiene is the most important thing you can do to maintain good sleep.
Historical Examples. 1  Malnutrition or anemia are also conditions which greatly disturb sleep. The Mother and Her Child William S. Sadler. 2  He seems to regard Atheism as a city malady, like rickets and anemia. Flowers of Freethought George W. Foote. 3  That's the third time this year, so she must really have anemia.