Heavy pruning done after growth starts in spring can weaken a tree because it forces the tree to use stored food for re-growth instead of for new growth. Heavy pruning during late summer should also be avoided because it can stimulate lush, succulent growth.Elm, ash and oak are an exception.eavy pruning done after growth starts in spring can weaken a tree because it forces the tree to use stored food for re-growth instead of for new growth. Heavy pruning during late summer should also be avoided because it can stimulate lush, succulent growth. Elm, ash and oak are an exception.
A childâs tension-type headache is frequently caused by tension or stress, depression, or insufficient rest. Tension-type headaches do not have the hereditary factor that migraines do, and they are not caused by organic problems or serious diseases.
Headache. A person with a headache has discomfort beneath the scalp, forehead, or behind the eyes. Headaches may occur occasionally, or headaches may become chronic by occurring frequently. The most common cause of headache is a muscle tension headache.Other common causes of headache include fever, head injury, viral infections, sinusitis, and migraine headaches.eadache. A person with a headache has discomfort beneath the scalp, forehead, or behind the eyes. Headaches may occur occasionally, or headaches may become chronic by occurring frequently. The most common cause of headache is a muscle tension headache.