O_o ...... I read some shit time ago...
Montesquieu, The Spirit of the Laws, Book XIV.
Of Laws in Relation to the Nature of the Climate
1. General Idea. If it be true that the temper of the mind and the passions of the heart are extremely different in different climates, the laws ought to be in relation both to the variety of those passions and to the variety of those tempers.
2. Of the Difference of Men in different Climates. Cold air constringes the extremities of the external fibres of the body; 1 this increases their elasticity, and favours the return of the blood from the extreme parts to the heart. It contracts 2 those very
fibres; consequently it increases also their force. On the contrary, warm air relaxes and lengthens the extremes of the fibres; of course it diminishes their force and elasticity.
People are therefore more vigorous in cold climates. Here the action of the heart and the reaction of the extremities of the fibres are better performed, the temperature of the humours is greater, the blood moves more freely towards the heart, and reciprocally
the heart has more power. This superiority of strength must produce various effects; for instance, a greater boldness, that is, more courage; a greater sense of superiority, that is, less desire of revenge; a greater opinion of security, that is, more frankness,
less suspicion, policy, and cunning. In short, this must be productive of very different tempers. Put a man into a close, warm place, and for the reasons above given he will feel a great faintness. If under this circumstance you propose a bold enterprise to
him, I believe you will find him very little disposed towards it; his present weakness will throw him into despondency; he will be afraid of everything, being in a state of total incapacity. The inhabitants of warm countries are, like old men, timorous; the
people in cold countries are, like young men, brave. If we reflect on the late wars,3 which are more recent in our memory, and in which we can better distinguish some particular effects that escape us at a greater distance of time, we shall find that the northern
people, transplanted into southern regions,4 did not perform such exploits as their countrymen who, fighting in their own climate, possessed their full vigour and courage.
more dementia here