The international pilots association Impa is sounding the alarm about unsafe pilot ladders. According to the pilots, a worldwide survey has shown that access to the ship via the pilot's ladder often does not comply with the regulations.
Each pilot association and each country can get a good overview of how other colleagues approach safety.
Ship crews can see which rules apply in which country.
In any case, this list from IMPA is worth looking through and reading.
Study from 2015: Psychological stressors, in addition to the physical demands associated with the role (e.g., reduced sleep, boarding, and departing vessels), may over time have a damaging effect on pilots' physical and mental health.