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.
1 A concrete driveway with a single decorative element -- pigmented color, textured finish, a basic border -- can cost $6 -$12 a square foot, or $1,800 -$3,600 for 12'x25' or $5,760 -$11,520 for 24'x40'.2  A CostHelper reader in Virginia paid $10,255 for 903 square feet with a broom finish, or $11.36 per square foot. Resurfacing an existing concrete driveway typically costs $2 -$8 a square foot depending on the thickness of the resurfacing layer, the condition of the existing concrete, and whether there are any patterns or colors stamped on the resurfaced area.