Invisible Worlds: A Microbiological Revelation

Microbiology changed how I see everything around me. When I started my college curriculum,

I thought it would just be memorizing bacteria names. Wrong. First week,

my professor had us swab our phones and grow the cultures. The petri dishes

looked like alien planets after three days. Turns out your phone has more

bacteria than a toilet seat. We learned about beneficial microbes in our gut,

how antibiotics work, and why hand washing actually matters. The craziest part was realizing we're

walking ecosystems. Every surface you touch, every breath you take,

you're interacting with millions of invisible organisms. Now I can't unsee it.