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.
A plain concrete driveway can cost $3-$10 or more a square foot, or $900-$3,000 for 12'x25' or $2,900-$9,600 for 24'x40', depending on soil conditions; whether existing pavement needs to be removed; drainage requirements; depth of the compacted gravel base; any slopes or curves; and any features like a turn-around or retaining wall.