Modifiers matching manipulation:

• spinal,
• stressful,
• photographic,
• mathematical,
• physical,
• psychological,
• acute,
• relevant,

Simple categories matching stressful:

• episode,
• condition,
• profession,
• event,
• setting,
• circumstances,
• emotion,
• behavior,
• task,
• incident,
• situation,
• period,
• agent,
• state,
• conflict,
• treatment,
• difficulty,
• experience,
• occasion,
• work,
• procedure,
• occurrence,
• time,
• appointment,
• habitat,
• activity,
• process,
• stimulus,
• circumstance,
• symptom,
• posture,
• therapy,
• intervention,
• times,
• motion,
• consequence,
• change,
• job,
• exertion,
• manipulation,
• sport,