Popular dating app Tinder crashed on Thursday night, ahead of a long holiday weekend in the United States.

The International Business Times reported that Tinder had crashed around 10:00pm Eastern time, and users were having problems retrieving their messages, contacting their matches and even logging in. Some users reported losing their matches as well. Users on the Dating Sites Reviews Forum also had issues with Tinder

Angry Tinder users voiced their frustration over social media, making jokes about Tinder failing just when they got some matches, were trying to contact their dates to meet, or downloaded the latest version of the app.

One user joked:

“Tinder crashes before it opens which also describes my love life ‪#tinder”

Picture a David Attenborough documentary. He's explaining the mating call of a South American tree frog, or the mating dance of a rare bird. Researchers have sunk hours of study into the mating rituals of Earth's various winged, scaled, and furry creatues.

And humans? We may not have the wings, scales, and fur, or the charming British narrator, but scientists are just as dedicated to discovering the secrets of our own mating habits. Thousands of subjects in hundreds of studies have made calculated dating movies – some right, some wrong – so that you can learn from their actions.

While every study has its limitations, we can use research to shed light on what does and doesn't work, hopefully upping our chances of success in the process. Tech Insider compiled 7 dating tips science says singles should follow if they're serious about finding love, including:

Communicate for free at eHarmony.com for 6 days from Wednesday August 31st to Monday September 5th, 2016. This is in celebration of the Labor Day long weekend and is available in the United States only.

eHarmony has been matching singles and creating many long term relationships with over 2 million marriages (and counting!) since the year 2000. Online dating has changed a lot in 16 years and eHarmony has evolved to become one of the most popular dating services. You can access their service via eHarmony.com or by downloading one of their phone apps which are available on Android and iOS. Years of continued research has fine-tuned the eHarmony profile questions and matching system making it the best chance of finding a partner according to this study.

Signing up for an eHarmony membership is free. Once completed all you need to do is take about 30 minutes and fill in your profile questions. These questions are important as they are used by the eHarmony matchmaking algorithm to find you your best matches (most are multiple choice). When your profile is finished you will then receive your first set of matches. After reviewing your matches you can then communicate with those that interest you by starting the guided communication process. New matches will continue to arrive everyday. As always free communication weekends do not include viewing of photos, the secure call phone service, and skipping the guided communication process to go straight to emailing. For access to these features you will need to purchase an eHarmony subscription.

For more about this online matchmaking service with the goal of finding its members long-term relationships, you can read our review of eHarmony.

New claims are made about Millennials every day. “Millennials are lazy!” “Millennials still live with their parents!” “Millennials are entitled!” “Millennials will never save money!”

Thanks to a recent study conducted at Florida Atlantic University, a new provocative headline has joined the generational narrative: “Millennials aren’t having sex!”

The study found that 15% of Millennials aged 20 - 24 said they had no sexual partners since turning 18. That’s more than twice the number (6%) of GenX’ers born in the 1960s who said they’ve had no sexual partners as adults. The shift toward higher rates of sexual inactivity among Millennials was particularly pronounced among women, and absent among Black Americans and those with a college education.

When you have a question and access to the internet, Reddit is the place to get it answered. A user of the popular site recently posed this question to members of the community who use dating sites: ‘What information about a person makes you leave/ignore their profile immediately?’

As of this writing, the post has garnered nearly 3000 comments from singles eager to share their two cents. The advice covers spelling errors, emoji use, selfies, profile cliches, and more. Read on for a selection of Reddit’s top tips for online daters.

Tinder took the online dating world by storm a few years ago when it launched, changing the way people connected for dates. Instead of crafting elaborate profiles, Tinder’s appeal was its ease and visual component, its mobile interface – you like a photo, and you swipe.

But now, other apps who have tried to copy its example, creating swipe-like features of their own, have found that this is not the best way to stay competitive in the dating app space. So instead of making as many profiles available as quickly as possible, other apps are looking to curate their offerings and make it a more selective process, specifically for female users.