There's no single "most" time-consuming job, as it depends on definition (hours, intensity, mental load), but demanding roles include surgeons, financial analysts (especially in high finance), and certain healthcare roles like acute care nurses, often involving very long, irregular, or high-pressure hours, while fields like oil extraction (roustabouts), game development, and data science (data cleaning) are also notorious for extreme time commitments and demanding workloads.
The health care field holds many of the most stressful jobs, but social services and construction also include demanding roles.
The most stressful jobs
By occupation, surgeons work the longest hours on average in the U.S. By industry, animal production and aquaculture industry workers clock the longest hours on average in the U.S.
12 jobs with the most time off
Nurses lead for those with the most burnout risk, with an estimated 6.9% burnout likelihood. This role is followed closely by ER physicians at 6.6% and primary-care doctors at 6.2% odds. Child and family social workers come in at 6.0%, while teachers and EMTs round out the top five with odds between 5.4–5.6%.
There's no single #1 happiest job universally, but Firefighters consistently rank high for job satisfaction due to their sense of purpose, while Care Workers, Counsellors, Content Creators, and IT roles (Java Devs, Systems Analysts) also appear frequently on "happiest" lists for fulfillment, autonomy, or good pay/balance. Overall, jobs with meaning, helping others, nature connection, strong coworker bonds, or good work-life balance tend to be cited as happiest.
The 996 working hour system (Chinese: 996工作制) is a work schedule that derives its name from its requirement that workers clock in from 9:00 am to 9:00 pm, 6 days per week, resulting in employees working 12 hours per day and 72 hours per week. It is practiced illegally by some companies in China.
What are the hardest physical jobs in the U.S.? Some of the hardest include construction, farming, firefighting, nursing, roofing, military service, and warehouse or delivery work. These jobs combine physical strain, long hours, and challenging environments.
7 jobs that give you a lot of free time
One job sector stood above the rest as the "unhappiest" in America. Results pointed to those working in pharmacies as having the worst Net Happiness Score, with just 13.94 percent of pharmacy workers giving a positive assessment.
Key takeaways
Examples may include loud, high-stress or pressure, unpredictable, and highly interactive roles. Some jobs that may be particularly good for people with anxiety include freelance worker, medical coder, transcriptionist, housekeeper, librarian, artist, medical lab tech, and massage therapist.
Jobs Requiring Highest Stress Tolerance
The "42% rule" for burnout suggests dedicating roughly 42% of your day (about 10 hours) to rest and recovery activities like sleep, hobbies, exercise, and socializing to prevent mental and physical exhaustion, countering the "always on" culture that leads to burnout. It's a science-backed guideline emphasizing that sustainable success requires balancing intense work with sufficient downtime for your brain and body to recharge, not just a quick nap.
Healthcare workers: depression is especially common among healthcare workers such as doctors, nurses, and other personnel working in the health profession. Styra et al. (2021) reported that 31.5% of Canadian healthcare workers were experiencing depression as a result of their work.
Which jobs are most damaging to your health?
Top 9 Most Dangerous Jobs in Australia in 2025 | Know the Risks
The biggest red flags at work often center around toxic leadership, poor communication, and a high-turnover culture, signaling deep issues like micromanagement, lack of transparency, burnout, and disrespect, where problems are normalized and employee well-being is ignored in favor of short-term gains. Key indicators include managers who don't support staff, excessive gossip, broken promises, constant negativity, and environments where speaking up feels unsafe or pointless, often leading to high employee churn.
Ideal shift schedule: Late-morning to evening shifts (9 AM–5 PM or 11 AM–7 PM) work best with their sleep cycle. If rotational shifts are necessary: A structured weekly rotation (rather than daily changes) gives your team time to adjust and minimizes sleep disruptions.
In August 2021, China's Supreme People's Court made history by ruling the “996” work schedule illegal. The decision came after several high-profile deaths of tech workers.
The Standard Work Hour System is the most widely implemented in China. Under this regime, an employee's workday is capped at eight hours, and the average workweek should be at most 40 hours. Typically, this translates to a five-day work week, but variations do occur, with some companies opting for a six-day work week.
Pilot is the world's dream job, with over 1.3 million global annual searches. Travel-related roles take up a large portion of the dream jobs list; alongside Pilot in first, followed by Flight Attendant in fifth and Travel Agent in sixth.
The roles with high job satisfaction
The following roles are excellent options for flexible or remote work, offering possibilities for better work-life balance.