Houston, we have a podcast. Welcome to the official podcast of the NASA Johnson Space Center,

episode 351. Let's Be Complex. I'm Leah Cheshire and I'm your host today.

On this podcast we bring in the experts, scientists, engineers, and astronauts all to let you know what's going on in the world of human spaceflight and more.

Spaceflight associated neuroocular syndrome or Sans affects some astronauts who spend extended periods in microgravity

leading to issues like blurred vision and changes in visual acuity. The common

theory for what causes this is that when in space fluid from the lower half

the body shifts from the lower half

the body shifts to the upper half, including the head,

increasing fluid pressure on the eyes.

Right now, managing stands involves monitoring astronauts'

vision and exploring potential preventative measures to mitigate its effects

during long duration space missions. One of those preventative measures might be as

simple as taking a B complex Vitamin supplement. Joining me to talk about Sans and the B complex study are Scott Smith, nutritionist and manager for

nutritional biochemistry and Sarah's Wort, senior scientists and deputy

manager for nutritional biochemistry both here at Johnson Space Center.

Dr. Smith and Zort are tasked with optimizing nutrition to improve astronaut health and safety on

extended duration space missions. They research effects of spaceflight on bone and muscle

loss, iron metabolism, and ocular changes in astronauts and have also

contributed to research efforts to understand the role of nutrition in

ground-based analog studies like long-duration bed rest, undersea missions,

and Antarctic winters.

Let's get started. P minus I second, I second, then county.

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