The biological limitation on men having repeated sex is called the Refractory Period. During this period, after orgasm, a man is generally unable to maintain an erection or achieve orgasm, and may be psychologically uninterested in sex.
The refractory period varies between men and increases with age. For younger men the period can be a matter of minutes. For older men it can be 12-24 hours. In some cases it can be days. There is also a refractory period for women, but it is more complex and in any case does not prevent a women physically from having sex.
Without an experiment there is no way we can be certain it is possible, but we know of nothing biological preventing some (probably most) men from having sex every day.