Democratic Senator Cory Booker completed the longest speech in America's history, which lasted for 25 hours. How did he prepare for it? To endure standing and talking for 25 hours takes a lot of preparation and strategy. So, what did Cory Booker do to ensure he maintained his body's energy and hydration levels?Starting from a few days leading to the big day of the speech, he started for days leading up to the speech, limiting both food and water intake. His primary concern was to avoid the need of a bathroom break. This would mean that you would yield the floor, and end his historic speech in between.Booker abstained food to eliminate the risk of digestion-related discomforts like bloating or hunger pangs mid-speech. Medical experts however suggest that this approach has downsides, such as muscle fatigue and electrolyte imbalances.Mental and Physical ConditioningBooker is also known for his dedication to fitness. He has relied on his physical endurance to sustain himself through the speech. His preparation also showed that his training for marathon in ways have helped him. As per reports, he used breathing techniques and mindfulness to maintain focus and combat fatigue.Furthermore, his heart rate was tracked by his Oura ring, which shot up to over 100 bears per minute at one point. This prolonged elevated heart rate indicated the physical strain his body was under. This was similar to what happens during an extended physical activity.Nutrient DeprivationMedical professionals also emphasized the importance of proper hydration and electrolyte balance before prolonged physical exertion. Booker, however did the opposite, he actually reduced his water intake to avoid urination. This also led to cramping, which is a common symptom of dehydration. Without adequate fluid intake, his muscles lacked the necessary hydration to function efficiently, leading to tightness and discomfort.Experts also noted that fasting for days before the event likely caused a depletion of glycogen stores, the body’s primary energy reserve. Without sufficient carbohydrates or fats for energy, Booker would have relied on sheer willpower and metabolic efficiency to sustain his performance.ALSO READ: Senator Cory Booker's Longest Speech In History Criticizes Trump's Health Policy, Details InsideHow His Body Reacted?Booker admitted to experiencing muscle cramps toward the end of his speech. These were likely due to prolonged standing and dehydration. Medical professionals warn that such extreme dehydration could have caused more severe issues, such as kidney problems, urinary tract infections, or even fainting.Despite completing his speech, Booker struggled to sleep afterward. His mind remained active, and his body, still processing the stress and exhaustion, made it difficult for him to rest. He reported feeling “loopy” after reaching home, a symptom often associated with extreme fatigue and sleep deprivation.Experts recommend gradually replenishing fluids and nutrients after extreme exertion. Booker took steps in this direction by consuming a banana and drinking water post-speech. Doctors suggest that an ideal recovery diet should include electrolyte-rich fluids, easily digestible foods like rice or broth, and a slow reintroduction of solid meals to restore depleted energy reserves.Standing for prolonged periods can lead to blood pooling in the lower extremities, which may cause dizziness or fainting. Additionally, resisting the urge to urinate for such an extended period could have long-term repercussions for bladder health. Given his fitness level, Booker is expected to recover fully, but his speech took a clear toll on his body.