​Dave Pepler talks to Prof. Hans Strijdom, medical doctor, physiologist and heart researcher from the Faculty of Medicine and Health Sciences, about how popular and readily available drugs and drinks could have a detrimental effect on our hearts and vascular system. At the table will also be Prof. Carine Smith, a stress immunologist in the Faculty of Science. She warns against the excessive use of "natural" substances, just because they are "natural".  This Science Café Stellenbosch at Woordfees 2017 is an initiative of SU's Faculty of Science to promote the public discussion of science issues. Entrance is free, but come early to grab a good seat!