air gaze

THE TELOMERE EFFECTを読んでいます。
Each day, we interact with strangers or acquaintances, and we can either feel separate from them--or we can connect with them in a small way that has a positive effect. Give people an "air gaze" (looking past the face, with no eye contact) and they will tend to feel more disconnected from others. Give them a smile and eye contact, and they feel more connected.
"air gaze" の意味は文中に説明がありますが、この表現を載せている辞書は見当たりませんでした。しかし、この表現は一般的に使われていて、次のサイト、 https://www.citylab.com/equity/2012/06/why-you-should-say-hello-strangers-street/2141/　の説明を引用します。
The people who were given an "air gaze" (or no eye contact) felt the most disconnected. On the other hand, the people who received eye contact and a smile felt the least disconnected of anyone studied. I wonder if you add a "hello" to the smile if it would lower the feeling of disconnection even more. Either way, it seems that even the smallest gestures to connect toward strangers can bring about a sense of community. And that's good for human health.
欧米ではアイコンタクトが重要と言っていますが、 "telomere"、つまり寿命と関係があるのが昔から分かっていたのでしょうか？