The Human Body!

[Aeradalia]

It takes your food seven seconds to get from your mouth to your stomach.

One human hair can support 3kg (6.6 lb).

The average man's private area is three times the length of his thumb.

Human thighbones are stronger than concrete.

A woman's heart beats faster than a man's.

There are about one trillion bacteria on each of your feet – yep I still want do deliver reflexology.

Women blink twice as often as men.

The average person's skin weighs twice as much as the brain.

Your body uses 300 muscles to balance itself when you are standing still.

If saliva cannot dissolve something, you cannot taste it.

Women reading this will be finished now.

Men are still busy checking their thumbs.

[doppelgaenger]

I thought the saliva one was interesting.

[SirWagginston]

I was most fascinated about how long it takes consumed food to reach the stomach. I stopped playing with my thumbs when I got to the next question, but that might because I was in the living room, and unable to whip my cock out for measurement.

[Mish]

It takes your food seven seconds to get from your mouth to your stomach.

I ate something hot the other day (as in the opposite of cold) and I could literally feel travel into my stomach. I'd say that's accurate^

[xxazurexx]

The average man's private area is three times the length of his thumb.

Some men must have tiny frigging thumbs then. lols

A woman's heart beats faster than a man's.

Interesting. Because women are supposed to live longer than men. And longevity isn't associated with a faster heartbeat.
And small mammals with fast heartbeats, (hamsters, mice, etc) don't live very long, while larger mammals (dogs, cats) with slower heartbeats do.