I would go so far as to say, long haul significantly shortens your life expectancy and well being. It's boring flying, and in an airline, one doesn't generally get to 'see the world', just airports hub areas and same old same old eateries and/or drinking dens (unless you really crank up the fatigue by trekking into the cities and environs).
But, I do recommend getting it out of your system while you're young. Or a quality biz jet operator is a good idea, interesting off the beaten path layovers. At the end of the day, it's a job which pays the bills, and short haul is less deleterious on the health.