Fen-Phen worked. Out of the millions of users of Fen-Phen, there were only 41 causes of pulmonary hypertension. https://www.thoracic.org/patients/lung-disease-week/2015/pulmonary-hypertension-week/general-info.php Fen-Phen should still be a drug people use. The slobberingly retarded backlash against it is the real problem. Just like any drugs, take it and monitor then quit if your metrics change to the dangerous: easy. All the other images are retarded bullshit from the 1950s and before - not much modern science going on in that type with tight controls like we are used to, today. I'd really like to talk to the person who made this image. I'd like to understand what level of retardeness was going through their mind to assemble this content.