People commemorating World Autism Awareness Day (April 2) in Brazil. Photo: Felipe Dana / AP

The risk of developing autism is 83% genetic and 17% due to environmental factors, according to a new model, TIME reports. Scientists studied sibling pairs — ranging from half siblings who share one biological parent to identical twins who share 100% of their DNA — and tracked diagnoses of autism among them, per the study. They also accounted for the fact that siblings may be diagnosed at different times.

Why it matters: The new model adds perspective to the debate over whether the disorder is rooted in genetics or environmental factors. Previous studies of just twins have found a 90% correlation between developing autism and genetics.

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Updated 52 mins ago - Politics & Policy

Coronavirus dashboard

Illustration: Sarah Grillo/Axios

  1. Global: Total confirmed cases as of 7 p.m. ET: 18,178,736 — Total deaths: 691,111 — Total recoveries — 10,835,789Map.
  2. U.S.: Total confirmed cases as of 7 p.m. ET: 4,698,335 — Total deaths: 155,331 — Total recoveries: 1,468,689 — Total tests: 57,543,852Map.
  3. Politics: White House will require staff to undergo randomized coronavirus testing — Pelosi says Birx "enabled" Trump on misinformation.
  4. Sports: 13 members of St. Louis Cardinals test positive, prompting MLB to cancel Tigers series — Former FDA chief says MLB outbreaks should be warning sign for schools.
  5. 1 🎥 thing: "Tenet" may be the first major film to get a global pandemic release.

Twitter faces FTC fine of up to $250 million over alleged privacy violations

Photo: Rafael Henrique/SOPA Images/LightRocket

The Federal Trade Commission has accused Twitter of using phone numbers and emails from its users to make targeted ads between 2013 and 2019, Twitter said in an SEC filing published Monday.

Why it matters: Twitter estimates that the FTC's draft complaint, which was sent a few days after its Q2 earnings report, could cost the company between $150 million and $250 million. The complaint is unrelated to the recent Twitter hack involving a bitcoin scam.

2 hours ago - World

Hollywood's international game of chicken

Illustration: Eniola Odetunde/Axios

If all goes to plan, Christopher Nolan's thrice-delayed "Tenet" will be the first blockbuster to receive a proper worldwide theatrical release amid the coronavirus pandemic at the end of this month.

Why it matters: It'll be playing a $200 million game of chicken, hoping to prove that people across the globe are still willing to trek to theaters to see a splashy new movie.