Figure 1.3. Yellow, the color of smileys. Green. Green is most commonly associated with nature. Itâs a soothing color that symbolizes growth, freshness, and hope. Thereâs little doubt why the color has been so closely tied with environmental protection. Visually, green is much easier on the eyes, and far less dynamic than yellow, orange, or red.
Circulatory problems could also cause leg cramps while sleeping because of the poor or reduced supply of oxygen to the muscle and tissue. Nocturnal cramps can affect anyone from any age group. However, in most cases, it affects people with poor circulation in their limbs especially pregnant or elderly women.
Other causes of sleep disturbance include sleep apnea, teeth grinding, allergies and colds, snoring, frequent urination, fibromyalgia, and nightmares. Sleep apnea causes breathing interruptions during your sleep, and teeth grinding (which is called bruxism) can cause you to wake up during the night.Allergies, colds, coughing, and upper respiratory infections can make it difficult for you to breathe at night.leep apnea causes breathing interruptions during your sleep, and teeth grinding (which is called bruxism) can cause you to wake up during the night.