executive interview series:

Khaled Kteily On How Home Environments Shape Health & Fertility

In this interview, we sat down with Khaled Kteily, founder and CEO of Legacy, to discuss how the spaces we live in can impact fertility, long-term health, and peace of mind. From air quality and light exposure to temperature and stress, Khaled shares why the home environment matters more than many people realize—and how this thinking aligns with Skyline Windows’ mission to create healthier, more comfortable homes.

Q: Legacy has pioneered at-home sperm testing and freezing. Why does the home environment matter so much for fertility and health?

Khaled Kteily: Fertility is deeply connected to overall health, and overall health is shaped by daily, cumulative exposures—many of which happen at home. Factors like air quality, temperature regulation, light exposure, noise, and stress all influence hormonal balance, sleep quality, and inflammation. For sperm health specifically, heat, environmental toxins, and chronic stress can all play a role. When your home supports comfort and well-being, it creates a foundation for better health outcomes.

Q: Legacy’s care model is built around the home. What have you learned from that approach?

Khaled: One of the biggest lessons is that people want healthcare to fit into their lives, not disrupt them. By allowing men to collect samples at home, we reduce stress, increase participation, and get more representative results. But it also puts a spotlight on the home itself—its cleanliness, temperature, privacy, and overall comfort. When people feel relaxed and safe in their space, they’re more likely to engage in proactive health decisions.

Q: Skyline Windows focuses on improving the performance of the home through better windows. How do elements like windows intersect with health?

Khaled: Windows are surprisingly central to health. Natural light affects circadian rhythms, which in turn influence sleep, testosterone levels, and mood. Proper insulation helps maintain stable indoor temperatures, which matters for comfort and energy levels. High-quality windows also improve air quality by reducing drafts and limiting the infiltration of outdoor pollutants and allergens. These are subtle factors, but over years, they add up.

Q: Stress is a recurring theme in fertility care. Can the home environment help mitigate it?

Khaled: Absolutely. Stress is one of the most underestimated factors in reproductive health. A noisy, drafty, or poorly lit home can elevate baseline stress without people even realizing it. On the other hand, a well-designed, comfortable living space can lower stress hormones and improve sleep—both of which are critical for hormonal health. Investing in the home is, in many ways, an investment in mental and physical resilience.

Q: Legacy and Skyline Windows are both headquartered in New York City. Does urban living change the equation?

Khaled: Urban environments bring incredible opportunity, but also unique challenges—noise, pollution, limited space, and temperature extremes. In cities like New York, the home becomes a sanctuary. Upgrading elements like windows can significantly reduce noise and improve indoor air quality, which can have real health benefits. For many Legacy customers, especially in dense cities, their home is the primary place they can control their environment.

Q: What advice would you give homeowners who want to think more proactively about health?

Khaled: Start by recognizing that health isn’t just about doctor visits—it’s about daily environments. Pay attention to sleep quality, light, air, and comfort. Ask yourself whether your home helps you rest, focus, and feel calm. Small improvements, whether it’s better ventilation, improved insulation, or more natural light, can have outsized effects over time.

Q: How do you see companies like Legacy and Skyline Windows contributing to a broader shift in health?

Khaled: Both companies are rethinking traditional systems. Legacy brings healthcare into the home, and Skyline improves the home itself. Together, that reflects a broader shift toward preventative, human-centered health—where we don’t just treat problems, but design environments that help people thrive long before issues arise.

At Legacy and Skyline Windows, the message is clear: healthier futures often start at home.