The study, which analyzed data from more than 8,000 women over several years, revealed some notable patterns. Researchers found that participants who kept using marijuana past 30 tended to score lower in several key areas, including education, income, and overall satisfaction with life. While it’s no secret that heavy use of substances can have negative effects, this study specifically links prolonged mar’ ijua;na use in adulthood to decreased personal and professional achievement. So, does smoking weed in your 30s spell doom for life success? Not necessarily. Success is subjective—what defines a fulfilling life for one person may not be the same for another. For some, traditional milestones like owning a home or climbing the career ladder aren’t essential. However, it’s still worth acknowledging that excessive marijuana use in your 30s might slow progress toward your goals in subtle ways that aren’t always obvious at first glance