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.
Headaches are common during childhood and become more common and more frequent during adolescence. An epidemiologic survey of 9,000 school children found that one third of the children who were at least seven years of age and one half of those who were at least 15 years of age had headaches.eadaches are common during childhood and become more common and more frequent during adolescence. An epidemiologic survey of 9,000 school children found that one third of the children who were at least seven years of age and one half of those who were at least 15 years of age had headaches.