30s
analysis
analyzing
biology
brown hair
brunette
caucasian
chemistry
concentration
equipment
examine
examining
experiment
expertise
focused
formula
health
healthcare
lab
lab coat
laboratory
looking
male
man
medical
medical research
medicine
microscope
mid adult
practitioner
profession
research
researcher
researching
science
scientific
scientist
scrutiny
serious
specialist
study
studying
technician
technology
working