Squinting in bright sunlight

[hereford_picnic]

Well I understood that you and 'JMartinC4' told me that I shouldn't squint, but your answers were missing the explanation part that would show that it won't harm my eyes..

That's going to be a tough one. I'd also like to see some scientific evidence about the harmfulness of the light. Honestly. I'm not just kidding here.

But this is not meant to be taken seriously, which is also indicated by the smiley:
How do you know that the air you breathe is not dangerous to your lungs? I would't breathe too much, if I were you.

But then again, if you read anything about the Buteyko method (for asthma) you will see that the above is not just bs. Even if the air was free of pollution.