postlunch dipenergy in a pill numerous supplements are available that claim to increase energy ginseng and ginkgo biloba are two supplements commonly marketed as energy and vitality boosters manufacturers of ginkgo products claim the herb improves cognitive function and memoryfind your own rhythm some decline in your energy level is expected as you age in fact lack of daytime energy is one of the most common health complaints among adults however daytime fatigue appears to be affected by a number of variables other than age and every individual is unique determining an effective remedy for your own afternoon slump may require some trial and error by working with your internal clock and not skimping on the necessities of sleep exercise and balanced nutrition you can get the most out of your days