Day Facts

Fidgeting can burn about 350 calories a day.

The average cat sleeps about 2/3 of the day.

Cockroaches can live for 9 days after their head has been cut off.

A human being loses an average of 40 to 100 strands of hair a day.

There are 86,400 seconds in a day.

The most productive day of the workweek is Tuesday.

Each day is getting slightly longer due to the Moon's gravitational pull on Earth's oceans. Tidal friction slows Earth's rotation by about 2.3 milliseconds per century - meaning days are lengthening by roughly one second every 50,000 years.

An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.

The average housefly lives for about 15 to 30 days.

The average person can only survive about three days without water, though this varies based on temperature, humidity, and physical activity levels.

Your body replaces about 3.8 million cells every second, totaling roughly 330 billion cells per day.