Quick Answer. An average person can walk one mile on a flat, well-groomed surface in 17 to 20 minutes. A fit person walking briskly can walk a mile in 13 minutes. An estimated average walking speed for calculating how long a hike or walk will take is around 3 miles per hour. Continue Reading.
4. Health Conditions. If your nails are brittle it may be a sign that you are getting an inadequate amount of oxygen to the feet, which can signal a respiratory issue such as asthma. Psoriasis can mimic the symptoms of a fungal infection in the toenails, causing them to become brittle or fall off. Hyperthyroidism or hypothyroidism can also cause the nails to split or separate easily. Dehydration, alopecia areata or eczema can also cause the nails to become brittle.
Low moisture content in the skin causes dryness of nails, hands and cuticle. This can be brought about by use of hash products while washing, manual works and harsh environmental condition. Other that nail ridges, lack of moisture also causes cracked brittle nails, discolored nail beds and split cuticle.