All interventions will be performed by the same acupuncturist licensed by the College of Traditional Chinese Medicine Practitioners and Acupuncturists of Ontario (CTCMPAO). Before the acupuncture treatment, appropriate infection control measures will be employed, and different size of single use, sterile, disposable needles in appropriate packages will be available. Participants will be suggested to wear shorts and T-shirts to the lab for their treatments. They will assume a prone position. The skin over points will be swabbed with 70% ethyl alcohol, using an outward rotary motion from the center of the point to the surrounding area to lessen the risk of contamination. No treatment will be taken until the alcohol dries. The acupuncturist will wash his hands immediately before the removal of needles. On withdrawing a needle, a sterile cotton ball will be used to press the skin at the insertion site. If blood is drawn, light pressure will be applied with a clean swab.