Young recently arrived migrants represent a vulnerable population. The influence of socioeconomic and environmental factors on health is now well known. The accumulation of protective factors can counterbalance the negative effect of risk factors, based on the concept of health assets. The migration process may threaten this balance. Some studies have observed better health in migrants than in the host population, but this is not a permanent effect as health deteriorates with time. Pre-migration experiences as well as post-migration conditions in the host country largely influence migrants' health outcomes. Family and social support and integration into the host society are primordial factors that need to be strengthened.