Dr. Zach Bush is a physician and researcher with a practice in Charlottesville, Virginia. Bush is triple board-certified in internal medicine, endocrinology and metabolism, as well as hospice and palliative care, giving him an unusually broad range of expertise. Before he switched his focus to nutrition and natural medicine, he was a cancer researcher.
In our last interview, we discussed
intracellular communication and the importance of soil microbes in the growing of food. Here, our focus is on hydration.
"A lot of our discussion last time was around the gut. There's rising awareness in the medical industry, as well as in the lay public, of the importance of gut health for human health.
However, even though this general correlation has now been largely assumed, if not proven, there remains a disconnect between understanding why gut health is so important and how it impacts so many phases of health and disease. Hydration, this topic we're covering today, is a huge piece of that puzzle," Bush says.
Redefining HydrationYour gut is an important part of the hydration cycle. The question is, how do you move water from the intestinal lining into your bloodstream and, more importantly, into your cells? As noted by Bush, when we talk about
hydration, we're not simply talking about
drinking enough water throughout the day but, more specifically, getting water inside your cells.
"That's two vastly different things," he says. A common recommendation to ensure hydration is to drink water until your urine runs clear. Unfortunately, even most medical professionals are stuck in this simplified mindset. "It's not unusual to put 5 liters of water into somebody's vein in a matter of hours in the operating room or the emergency room,"
Bush says, "And so, we have this huge infusion into the bloodstream, but unfortunately,
that does not necessarily translate into water inside the cell. That, as it turns out, is really a crux of what we call the aging process."
About two-thirds of your body is composed of water, and a majority of that water - about 66 to 70 percent - is within your cells and lymph system. With age, your body tends to lose its ability to get water from the vasculature, the extracellular environment, to the inside of your cells.
"If we could stay perfectly hydrated in the intracellular environment, our aging would slow down if not reverse," Bush says. The reason is because water is an important mechanism by which you remove toxins and naturally-produced oxidants from your body.
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