Relative to adults, children tended to use more regions of their brains to complete the word tasks, activating more regions near the back of the brain. At the same time, children showed less activation in some regions at the front of the brain that have been commonly seen in adult studies of word processing. In some brain regions, children and adults showed very similar levels of activation while performing the tasks. This included some parts of the frontal lobe.
Look for a mix of fast- and slow-release fertilizers that will green up your lawn quickly, and feed it over time. In the north, feed in fall and spring. In the south, feed in spring and summer. Don't feed dormant grass (drought can cause grass to go dormant in summer) because it can't take in nutrients.
Apply a high-nitrogen fertilizer to the lawn each spring and fall. Do not fertilize in the summer, as this only benefits the weeds and not the grass. Grass needs a lot of nitrogen to thrive and if weeds are taking over the lawn, it's a sure sign that the soil is deficient in nitrogen.