The study also found that girls and young women were more likely than boys and young men to have coenzyme Q10 deficiencies. Boys and young men were more likely to have vitamin D deficiency. Patients with chronic migraines were more likely to have coenzyme Q10 and riboflavin deficiencies than patients with episodic migraines, the study found.
ThisOldHouse.com estimates it took two people five hours and six bags ($150-$180) of material to resurface a 9'x27' driveway and a 3'x18' walkway (about 300 square feet). Renting a pressure washer to clean the existing concrete before resurfacing can add $40-$75 to the total DIY costs.
If the damage is extensive, repaving may be necessary. A newly paved driveway can cost $600-$3,000 for gravel, macadam or black asphalt for a small 12x50 (600 square foot) surface, and can run two to three times as much for materials like concrete or cobblestones.