All the blood vessels in your body laid end to end would reach about 60,000 to 100,000 miles (100,000 – 160,000 kilometres), about two-and-a-half to four-and-a-half times around the circumference of the Earth – Resource
Your naked eye can see a galaxy 2.5 million light years away – that’s 14,697,500,000,000,000,000 miles or 23,653,333,440,000,000,000 kilometres – Resource
At rest, my heart beats around 60 beats per minute, meaning if my heart rate stays the same and never fluctuates, it will beat around 1,000,000,000 (1 billion) times in 30 years; 1,260,000,000 (1.26 billion) times in 40 years and 2,520,000,000 (2.52 billion) times in 80 years. It will probably be significantly more when considering increases throughout my life (exercise, anxiety, etc.).
Your small intestine is around 6 metres (20 feet) long, about as tall as an adult giraffe or three-quarters of the length of a double decker bus – Resource
Wisdom teeth serve no purpose. It is believed that, as our early human brains grew bigger, space in the mouth reduced. Also, as we started to understand and cook food with fire, our diet of raw meat, leaves and roots shifted to softer, more mushy food, leaving less necessity for a third set of molars.
Will evolution catch up with soft modern diets and will our brains expand even more to push out other unnecessary nashers?
On average, the femur (thighbone) is 26.74% of a person’s height, with no significant statistical variances across genders and ethnic groups. This helps scientists estimate the height of an individual from an incomplete skeleton – Resource
More than 30% of cancer could be prevented. Mainly, by eating healthily, being physically active, not using tobacco and drinking alcohol in moderation – Resource
Please feel free to add your own truths and perspectives to this list, using the thought box below.
If your truths are supported by facts, add a link to a reliable source.
I hope these truths serve you as much as they serve me.