Tue Jul 22 15:56:19 UTC 2025: Okay, here’s a summary and a news article based on the provided text:

**Summary:**

Indian astronaut Group Captain Shubhanshu Shukla, part of the Axiom-4 mission, recently returned to Earth after 18 days on the International Space Station. He is currently undergoing a week-long rehabilitation program in Houston to help his body readjust to gravity. In a social media update, he shared his surprise at how quickly the body adapts to changing gravitational environments, noting the various physiological adjustments astronauts experience in microgravity and upon returning to Earth.

**News Article:**

**Indian Astronaut Shukla Amazed by Body’s Adaptability After ISS Mission**

**Bengaluru, July 23, 2025 (The Hindu) –** Group Captain Shubhanshu Shukla, the Indian astronaut who recently returned from an 18-day mission to the International Space Station (ISS) as part of the Axiom Mission 4 (Ax-4), has shared an update on his post-flight rehabilitation, expressing surprise at the human body’s remarkable ability to adapt.

Shukla, who splashed down off the coast of San Diego on July 15th and was promptly flown to Houston for a week-long rehabilitation program, took to Instagram to address concerns about his health and recovery.

“Experiencing microgravity, our body goes through several changes like fluid shift, heart rate, balance readjustment, muscle loss. These are adaptations to the new environment. Once the body gets used to this and we return to gravity, these adjustments happen once again,” Shukla explained.

He further elaborated, “Though it varies for all astronauts, the body soon starts adapting to its new environment. I was surprised to observe the pace with which our body can adjust to new settings.”

The rehabilitation program aims to mitigate any adverse effects of microgravity exposure. Shukla’s mission, a significant milestone for India’s space program, highlights the ongoing research into the physiological challenges of space travel and the body’s capacity for resilience. His experiences and observations will undoubtedly contribute valuable insights to future space exploration efforts.

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