Documentaries “The Sun”

Sun contains 99.86% of the mass in the Solar System

Isn’t that amazing. Who would tell that 99.86%, everything else (rocks, planets, dust) are just tiny, tiny, tiny, tiny parts of the Solar System.[1] Find this and other interesting stuff in the documentaries below…


Further reading and References:


Sun exposure can make you live longer!

We are used to be warned about sun exposure, we know all of its risks and we know that we shouldn’t look at the sun [1] neither stay too long because of sunburn [2] and skin cancer [3]. But what about its benefits?

Usually we don’t see a lot of information on this concern, but nowadays this topic is starting to have more visibility. As the ancient greek proverb states, “virtus in media stat “(virtue stands in the middle). This is what in fact happens with sun exposure.

The benefits include the reduction of hypertension and cardiovascular disease. As a side note, cardiovascular disease is the number one cause of death, accounting 30% of deaths worldwide. [4] Dr. Richard Weller studies have successfully showed that UVA (Ultraviolet radiation A) activates NO(Nitric Oxide) that is stored in the skin which dilates blood vessels hence making an important change in hypertension and cardiovascular disease. [5]

The following video might facilitate the comprehension of this difficult subject.


Other benefit now caused by other component UVB (Ultraviolet radiation B) is that it seems to protect from MS (Multiple Sclerosis) according to recent studies there is a strong evidence for this. [6] This happens due to the Vitamin D that is created on our body by UVB. [7]

The last benefit I will present is about SAD (Seasonal Affective Disorder). This is a mood change that occurs in summer or winter. As in other animals winter brings an extremely hard survival environment and so animals tend to diminish activity. This is probably what also happens in humans setting a cosy atmosphere for humans sleep and feeling depressive. So revealing this is really a fact sun exposure is able to trigger a good mood. [8]

Conclusion, in spite of the fact that sunlight seems to attack you that is not actually the true there’s this “other side of the coin” which matters for your life span.

This is a lengthier post that I will make all possibles to not repeat. This gave me a lot of work (selection of information and selection of fonts) so I hope you like it. Give some feedback and see you next time! Quality before quantity!

References and further reading.

[1] – Snow blindness – Wiki

[2] – Sunburn – Wiki

[3] – UV and Skin Cancer – American Cancer Society

[4] – Sun, Vitamin D, and cardiovascular disease – US National Library of Medicine

[5] – Sunlight Might Be Good for Your Blood Pressure: Study – HealthDay

[6] – Childhood sun exposure influences risk of multiple sclerosis in monozygotic twins –

[7] – What Causes MS? – National Multiple Sclerosis Society

[8] – Seasonal Affective Disorder -Wiki


How the sun sees you!

We are used to see in only one kind of electromagnetic waves, the visible light waves.[1]

What about ultraviolet waves, how do they make you look?

Sun has three different kinds of light that get into earth: infrared, ultraviolet and visible.[2] What we can only see is just the visible light. So have you ever thought about see in ultraviolet? How would you look?

Here is how the answer looks like…

References and further reading.

[1] – Introduction to the electromagnetic spectrum – Nasa

[2] – Sunlight – Wikipedia