Space Tourism Health Requirements: Can You Qualify to Fly?

Most people assume only elite athletes with military-grade physiques can go to space. The reality is more interesting — and more accessible — than that. A 90-year-old actor flew on a rocket. A wheelchair user reached orbit. A grandmother in her 80s has looked down at Earth from beyond the atmosphere. But "you need to be healthy" is where most articles stop, and that's where the real questions begin. What does healthy actually mean here? What gets you disqualified? What will a doctor check before you're cleared to launch?

If you're genuinely researching space tourism health requirements — not just daydreaming — this guide gives you the specific, practical picture. Consider this your starting point before booking a consultation with a physician.

Important disclaimer: This article is informational only, based on publicly available operator requirements and spaceflight medicine research. It is not medical advice. Always consult a qualified physician before pursuing any commercial spaceflight.

The General Health Baseline Every Operator Requires

Before getting into company-specific details, there's a common floor that every commercial spaceflight provider builds on. Most healthy adults aged 18 and over can qualify. That sounds broad — and it is — but the word "healthy" is doing a lot of work in that sentence.

The core concern for every operator isn't your fitness level per se. It's whether a medical condition could suddenly become dangerous when there's no hospital nearby. What operators are looking for are acute or uncontrolled conditions that could become dangerous under G-loading in a setting where emergency medical care is impossible: serious uncontrolled cardiovascular disease, recent cardiac surgery, and certain respiratory conditions are the categories that typically raise concerns.

Think about what spaceflight actually does to your body. Under microgravity, physiological changes include cephalic fluid shift, dramatic reduction in central venous pressure, changes in blood rheology and endothelial function, cerebrovascular abnormalities, headaches, and facial swelling. For most healthy people, these effects are temporary and manageable. For someone with an uncontrolled cardiovascular condition, they can become a serious problem.

The goal of preflight screening is to ensure that medical conditions that may result in sudden incapacitation are identified and either disqualified or treated before the mission begins. That's the logic behind every medical form you'll fill out. Not to make things difficult — to keep everyone alive.

Space Tourism Medical Requirements by Company

Here's where it gets practical. Not all rides to space are equal, and the medical bar scales dramatically depending on where you're going and how long you'll be there.

Blue Origin (New Shepard — Suborbital)

Blue Origin requires passengers to be 18 and up for New Shepard flights. They've flown people ranging from 18-year-old Oliver Daemen to passengers in their 80s, as long as they pass health checks. The physical fitness test here is refreshingly concrete: Blue Origin asks you to climb seven flights of stairs in 90 seconds — a simple way to check if your heart can handle launch and landing.

Blue Origin's youngest passenger was 18 (Oliver Daemen) and its oldest was 90 (William Shatner). In December 2025, NS-37 included the first wheelchair user in space. That last milestone matters enormously. It signals that the company is actively working to expand who qualifies, not narrow the pool.

Note: In January 2026, Blue Origin announced a break in New Shepard suborbital flights for no less than two years, focusing on its Blue Moon lunar lander program. So while the medical framework remains relevant for when flights resume, check current availability before planning anything.

Virgin Galactic (SpaceShipTwo / Delta Class — Suborbital)

Virgin Galactic requires passengers to be at least 18, with no maximum age. They conduct medical screenings but don't publish hard age cutoffs. Passengers fill out a medical questionnaire and get a physical, and the company's medical team reviews each case individually.

Suborbital flights hit about 4G during takeoff and landing, and the medical team checks whether you can handle these forces. You'll need to climb stairs and move around on your own. There's also a three-day training program before the flight.

The first commercial Virgin Galactic flights in 2021 required an intensive three-day training program at Spaceport America in New Mexico. Virgin Galactic has not flown space tourists since 2024, although the company expects a new spacecraft in service by the end of 2026.

SpaceX / Axiom Space (Crew Dragon — Orbital)

This is where the requirements get serious. Orbital missions are a fundamentally different category. SpaceX asks for significantly more for their longer, orbital trips. Older travelers go through months of physical training, close to what astronauts do.

Orbital missions have stricter requirements because you'll be in space for days or weeks. Axiom Space conducts a thorough medical screening process that mirrors NASA's standards, plus extensive psychological evaluation. The extended duration means conditions like cardiovascular issues, vision problems, and certain medications require careful evaluation.

Private astronauts flying with Axiom receive a standard official review by NASA and its international partners and undergo NASA medical qualification testing before being approved for flight. That's not a light lift. You're essentially going through a modified version of the same process that clears professional astronauts for duty.

For context on the training commitment: SpaceX orbital mission training spans several months and includes complex systems management, emergency survival training for potential water landings, and preparation for civilian spacewalks.

Space Perspective (Balloon Flights — Near Space)

Space Perspective is a different animal entirely. Their pressurized capsule, lifted by a high-altitude balloon to around 30 km, offers a gentler, several-hour experience rather than the rocket-powered intensity of suborbital or orbital missions. Because there's no significant G-force involved, the medical bar here is considerably lower — making it potentially the most accessible option for people with health considerations. Always verify current requirements directly with the operator, as their program is still developing.

Age Limits: Who's Too Young, Who's Too Old?

The short answer: 18 is the floor, and there's no ceiling — only a medical exam.

The FAA sets 18 as the legal minimum for commercial spaceflight passengers. This rule comes from laws about contract signing and liability — adults have to acknowledge the risks and sign waivers before they can go. It's not a physical fitness decision; it's a legal one. Minors can't legally make these decisions or sign binding contracts on their own.

On the upper end, most space tourism companies don't set a maximum age. Blue Origin and Virgin Galactic care more about health and fitness than how many birthdays you've had. The oldest space tourist flew at 90, so age alone doesn't keep you grounded.

That said, if you're over 60, expect more thorough medical screenings. Companies want detailed physical exams and sometimes stress tests. The scrutiny scales up with age — not because older people are assumed to be unfit, but because certain risk factors become statistically more common with age and need to be ruled out explicitly.

Conditions That Could Disqualify You — And Some That Won't

This is the section most websites skip entirely. Here's the honest breakdown.

For professional astronauts, common reasons for disqualification include vision or ophthalmological conditions, cardiovascular conditions, chronic sinusitis, migraine, kidney stones, and asthma. Commercial space tourists face a more lenient version of this list, particularly for short suborbital flights — but the cardiovascular category is scrutinised across the board.

NASA's own waivered health conditions documentation gives a window into the medical logic. For cardiac screening, tests include an ECG, five-day Holter monitor, echocardiogram, calcium artery calcification testing, and a stress test. Commercial operators for suborbital rides won't go to this depth, but cardiovascular stress testing is still a standard component of the pre-flight review.

The body systems reviewed during spaceflight medical screening span a wide range: cardiovascular, neurological, ophthalmological, ENT, orthopedic, genitourinary, dermatological, psychiatric, oncology, gastrointestinal, pulmonary, and miscellaneous categories including diabetes, anemia, and infectious or contagious disease.

Here's the critical nuance most people miss: these are screening processes, not automatic disqualifications. Many conditions that would have barred someone from NASA service in the 1960s are now manageable in a private commercial context. A controlled chronic condition is very different from an uncontrolled acute one. Managed high blood pressure is not the same as a recent cardiac event.

In individuals with cardiovascular risk factors or specific medical conditions, additional screening may be required. The goal is to ensure that conditions that may result in sudden incapacitation are identified and either disqualified or treated before the mission begins.

Vestibular disorders (affecting balance and inner-ear function) and severe claustrophobia are also worth flagging to any operator during your initial inquiry. Microgravity does disorienting things to your sense of up and down, and confined capsules during long ascent phases are not ideal for anyone with unmanaged anxiety around enclosed spaces.

What the Medical Screening Process Actually Looks Like

Nobody publishes a step-by-step checklist, but based on spaceflight medicine research and operator communications, here's the realistic sequence for a suborbital flight:

1. Initial health questionnaire — You'll disclose your medical history, current medications, and any chronic conditions. Be thorough and honest. Omitting something here is both dangerous and a contract violation.
2. Physical examination — A physician (either your own, or one designated by the operator) conducts a standard physical, including blood pressure, heart rate, and basic mobility assessment.
3. Cardiovascular screening — Expect at minimum an ECG. Operators vary on whether they require an exercise stress test, but if you're over 50 or have any risk factors, one is likely.
4. Functional fitness test — For Blue Origin, the stair-climb test is the benchmark. For Virgin Galactic, it's demonstrated ability to move independently within the cabin environment.
5. Operator medical review — The company's flight surgeon reviews your results and either clears you, requests additional testing, or advises you're not suitable for the current mission profile.

For orbital missions, add psychological evaluation, water-survival training, centrifuge sessions for G-force acclimatization, and months of systems training on top of the above. Training ranges from approximately 14 hours for Blue Origin suborbital flights to months of astronaut-level preparation for orbital missions.

How to Prepare Your Body — Starting Six Months Out

Even if your target is a suborbital hop, showing up physically prepared makes the screening smoother and the flight more enjoyable. Here's what actually matters.

Cardiovascular fitness is non-negotiable. Virgin Galactic and Blue Origin both want you to show basic mobility and heart health for suborbital flights. A consistent aerobic routine — brisk walking, cycling, swimming — for six months before your screening will do more for your results than any crash programme. Aim for 150 minutes of moderate aerobic activity per week, the standard recommendation used as a baseline in aviation medicine contexts.

Get your blood pressure under control. Uncontrolled hypertension is one of the most common reasons for delays in medical clearance. If you already know yours is elevated, address it with your doctor well before you apply.

Inner ear and vestibular health. Balance and coordination tests help spot motion sickness risks. If you've historically struggled with motion sickness on boats, planes, or fairground rides, discuss this proactively with the operator's medical team. There are management strategies — but operators need to know in advance.

Weight management matters practically. Spacecraft seat harnesses, suit fittings, and emergency egress pathways are engineered within specific parameters. Operators publish weight limits — typically around 100–113 kg depending on the vehicle. Check the specific requirements for your chosen operator.

Mental readiness counts. In space missions, the human body is exposed to various physical and psychological stresses, including prolonged exposure to microgravity, decreased physical activity, lack of sleep, and confinement and isolation. Even on a brief suborbital flight, there's psychological intensity to the experience. If you have unmanaged anxiety, it's worth addressing before — not after — you commit to a ticket.

The industry has come a long way from the assumption that space is only for the supremely fit. Suborbital flight has been flown by people across a wide range of ages and health profiles. William Shatner flew at 90 and Wally Funk at 82 on Blue Origin; a wheelchair user flew on NS-37 in late 2025. Many common, controlled conditions are not automatically disqualifying.

The question "can I go to space?" is less about whether you're an elite athlete and more about whether your body can handle a specific set of stresses without creating a crisis in a place where no ambulance can reach you. That's a different — and much more answerable — question. Start with your GP, get your cardiovascular baseline checked, and have an honest conversation with the operator's medical team. The answer might surprise you.

So, what's the one health factor you're most uncertain about? Drop it in the comments — it might be less of a barrier than you think.