World of Biology on Instagram: "The sodium-potassium pump is a protein in the neuron's membrane that uses ATP to move three sodium ions out and two potassium ions into the cell, thereby restoring the resting potential necessary for nerve impulses. Animation credit - @ribosomestudio"

Jacob Habib Khan on Instagram: "Arizona January 26! I’m teaching two different classes at HB Sessions! A full fringe/bangs master class and a cut and color collection! this event is also featuring @emchenhair teaching her own lesson and @gerardscarpaci teaching razor cutting! Early bird pricing available now, and group discounts for 3 or more tickets purchased at a time. Link in my bio!"

Lounge Guru on Instagram: "Is this my new favorite business class seat? This was my first experience flying with Air Astana on a 6-hour return flight to Almaty International Airport (ALA). The ticket cost $2,000 and the aircraft was an Airbus A320 in a 2-2 business class configuration. The seats were extremely spacious and comfortable. From the moment I boarded, the crew greeted me with smiles and made me feel welcome. And here’s the part that surprised me most: I was the only business class pas