The 20th Congress of the International Society for Twin Studies (ISTS) and the 8th World Congress were held on August 10th, 11th, and 12th at the Cinnamon Grand Hotel, Colombo. This global event brought together over 250 delegates from more than 30 countries—including the United Kingdom, Europe, Australia, Asia, and North America—representing prestigious universities and research institutions worldwide.
Organized for the first time in Sri Lanka, the congress was hosted by the Institute for Research & Development in Health and Social Care (IRD) and its affiliated Sri Lanka Twin Registry (SLTR). The inauguration ceremony was graced by the Hon. Minister of Science and Technology, Mr. Chrishantha Abeysekera, as the Chief Guest. Also in attendance were the British High Commissioner to Sri Lanka, Mr. Andrew Patrick, along with internationally renowned doctors, professors, and researchers representing around 35 countries.
A significant highlight of the inauguration was the formal handover of the ISTS presidency for the 2026–2027 term. Professor David László Ternóczky, the outgoing President, officially passed the role to Professor Athula Sumathipala, who has served as the Society’s Secretary-General until now.
A Message from Professor Athula Sumathipala
Professor Athula Sumathipala shared his perspective on this new role:
“I do not consider this appointment as a personal achievement or privilege. Rather, I see it as an acknowledgment by the international community of the collective efforts and research outcomes achieved over the past 25 years by the Institute for Research & Development and the Sri Lanka Twin Registry. This is not merely an opportunity for twin studies but a chance for Sri Lanka to make a broader global impact in scientific research.”
“Traditionally, scientific knowledge has flowed from the Global North to the Global South—from developed nations to developing countries. However, the research we have conducted, both in twin and non-twin studies, has demonstrated a reverse flow: from low- and middle-income countries to high-income nations. This recognition reflects the significance of that contribution.”
“I see this moment as a powerful opportunity to take our work even further. It is also a moment to extend my deepest gratitude to all those who have contributed along the way.”