Thursday, November 22, 2012

The one whose daily work is close to prophecy

I commuted by bicycle, which felt good, but I'm rather tired, because of all the recent busyness. A little bit of sickness - fever and sore throat are symptoms - is going around in the family, but luckily it hasn't hit me yet. Maybe the physical shock of the bicycle commute keeps up resistance to bugs ... at least one can hope it is so.

(Posting title is from the poem Unravelling / Shock by Nathaniel Tarn.)


Markus said...

Juha, cycling certainly protects you from many attacks on your health, as your immune system is constantly working - micro injuries in the muscles you use are its daily gym session. I remember I never was so healthy as when commuting daily by bike over a 17km distance, summer and winter.

That you feel tired is certainly caused by the studded tires, too. I'd guess they need 30% more energy for the same distance as normal tires do.

Juha Haataja said...

Markus, I'm sure there is something to the exercise, although I'm only commuting by bicycle on 2-3 days each week.

The studded tires may be a reason for feeling tired, although I don't think the difference in energy need is that great. Maybe 5 % would be the difference, as my usual tires aren't so light either, having heavy puncture protection.

It is also interesting how a bicycle is rather optimal for the muscles, each muscle working only about 1/6 of the rotation and then resting, allowing it to recover meanwhile. Remarkable fit to human physiology.