Heat as the risk that arrives in hours rather than decades, the training block problem, spring, the commute, and what to record after a long day.

Ultraviolet exposure accumulates over years. Heat can put someone in hospital in an afternoon. On a hot day, heat comes first.
People remember the one scorching day. The total comes from four ordinary sessions a week for five months, none of which felt like anything at all.
The sun has climbed a long way by late March, the air is still cold, nobody has adjusted anything, and the first good weekend is seven hours long.
Two trips a day, at fixed hours, on the same route, in the same kit, for a working lifetime. It is transport, so nobody counts it as anything.
The five minutes after a long day outdoors are the only time you get real feedback on your exposure plan. Here is what to write down, and where the site stops and a GP begins.
One email a month on exposure, heat and sun protection for people who train outdoors and people who work outdoors. No product recommendations, because we do not make any. Each issue carries a single clearly labelled sponsor line that has no influence on anything above it.
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