When exertion showed on the body
Early lawn tennis offered polite society a contradiction: it was a fashionable pastime, but playing it meant running, reaching and working up a visible sweat. In settings where good manners favored calm, controlled behavior, a flushed face or damp clothing could make physical effort hard to disguise. The discomfort was not with tennis’s scoring so much as with the bodily evidence that a player had exerted themselves.
Why sweat is so noticeable
Sweating is the body’s cooling system. As sweat evaporates from the skin, it carries heat away, helping keep the body from overheating during activity. But the same process leaves a visible trace—especially on clothing—and a game played outdoors can add warmth and sun to the effort.
That made tennis different from a pastime whose effort could remain largely invisible. A player might aim for graceful movement and composed manners, yet the body still responded to the work of the game. The etiquette problem was that athletic exertion could not always be made to look effortless.
A changing idea of respectable activity
The tension helps explain why tennis could be both socially acceptable and faintly awkward: its setting and conventions made it genteel, while its physical demands were unmistakable. Over time, taking part in sport became easier to reconcile with respectable behavior. The lasting irony is that the very sign once associated with a loss of composure—sweat—is also evidence that the body is doing what it needs to do to keep playing.
