What Are We Trying to Learn?

We are providing continuing education for physicians, nurses and other health professionals. We also are identifying personal environmental triggers in patients’ homes and recommending intervention practices during Environmental House Calls (EHCs). We are evaluating the effectiveness of EHCs on symptom reduction.

Finally, we are investigating genetic and other susceptibility TILT markers through biological testing

What Is Our Approach?

We are conducting environmental house calls and will use what we learn to provide personalized education to participants. For people who do not live near our research site in San Antonio, Texas, there are opportunities to participate in online research. For more information, contact us.

Join Our Research


You can join our research in 4 ways

  • Make a Donation
  • Share Your TILT Story
  • Share Your Assessment Results
  • Request an Environmental House Call

Learn More

We couldn’t make these advances in medical research without you.

What are Environmental House Calls?

<em>As a key component of the Hoffman TILT project, our certified indoor air quality team conducts home assessments for local study participants.</em>

The house calls include indoor air quality assessments to measure levels of volatile organic compounds (VOCs), mold, allergens, particulates as well as temperature and humidity.

Participants in the study will receive a series of home visits, including an initial assessment, a visit to share results and help them develop an action plan. The final visit will determine whether indoor air quality has improved and triggers have been reduced.

Why Is This Research Needed?

As many as 20 percent of patients in our clinics have already been identified as having TILT.

Susceptible people include pregnant women, children, older adults, those with chronic disease and chemical intolerance. Yet, few individuals receive any advice about their indoor air quality, or are asked questions about it. Few doctors, nurses, and respiratory therapists have received any training to recognize the impact of environmental exposures on health.

Through presentations at professional meetings and in peer-reviewed publications, we will share what we learn during this study to teach health care professionals who encounter TILTed patients. Our ultimate goal is that people receive improved care from better-informed health care providers.