you are as -- few are as successful as wenjun lau. if the output of social media stars is judged to be too sexually explicit, or too critical, the authoritarian state can end their careers. influencers with huge numbers of followers are especially closely monitored. >> it has not really worried me much so far because the governrnment supports this industry. kols are an emerging sector, also supported by the fashion, design, and art industriries. >> wenjun lau is convinced that china's influence on fashion will only continue to get stronger. she plans to launch her own collection of swimwear this year. and the best advertising for that will undoubtedly be herself. in 2017, an estimated 971 million people worldwide were grappling with mental health issues according to a study by the u.s.-based institute of health metrics. that's around one in eight of the global population. anxiety, depression, and bipolar disorders are widespread as are psychiatric disabilities from birth. in industrialized nations, there are just 100 psychiatrists for