a middle-aged bearded man in a white lab coat with arms crossed stands against an white background

man middleaged beard labcoat armscrossed whitebackground professional serious adult scientist portrait confidence glasses doctor medical expertise healthcare researcher isolated mature intelligent focused eyewear professionalism clinic dedicated trustworthy authoritative experienced contemplative determined handsome protective seriousness workwear staff occupation consultant uniform health person penholder hospital steely sophisticated thoughtful practitioner individual lab male