Asteroid miners are a gruesome synthesis of man and machine - due to the horrendous level of injuries experienced by these unfortunate souls during the mining process.
Nearly all asteroid miners have lost limbs or body parts as they have been involved in near fatal accidents. Many opt for their bodies to be grafted onto mechanical chassis even before any accidents occur (if they can afford to pay for it). The chassis enables them to perform their work more efficiently and safely inside the artificial atmosphere of the asteroid interior (the asteroids are mined from the inside out).
Asteroid miners will staunchly defend their claims on the valuable asteroids they mine - and are generally a fiercely independent group. Some miners are even lucky enough to retire on a huge fortune - if they survive.