Cordyceps

Still hearing it at 30+, but it definitely depends on the tv how loud it is

A true an hero

In Finland, during winter, we enjoy making wide openings into an icy lake near the shore, and go swimming in it. Best translation I can find is ice swimming. This is usually paired with a piping hot sauna, and you alternate between the 80-100 celcius hot room and taking dips in the ice water. If no lake/similar body of water is available, rolling around naked in snow is also a valid option.