In just ten seconds, one kiss can transfer up to 80 million bacteria, according to a new study published in the journal Microbiome.
Partners who kiss up to nine times per day share the same communities of oral bacteria, according to the study.
"Interestingly, the current explanations for the function of intimate kissing in humans include an important role for the microbiota present in the oral cavity, although to our knowledge, the exact effects of intimate kissing on the oral microbiota have never been studied," says lead author Remco Kort, from the Netherlands Organization for Applied Scientific Research (TNO)'s Microbiology and Systems Biology department and adviser to the Micropia museum of microbes.
Kort and his colleagues worked with 21 couples who filled out questionnaires on their kissing behavior including their average frequency of intimate kissing.
Participants' mouths were then swabbed, giving researchers the chance to investigate the composition of the microbiota living on the tongue and in the saliva.
In a kissing experiment to quantify the transfer of microbiota, one member from each couple consumed a probiotic drink containing species such as Lactobacillus and Bifidobacteria.
Participants were then asked to kiss, after which the receiver's saliva contained three times the probiotic bacteria that it had before the kiss, and researchers calculated that 80 million bacteria would have been transferred in 10 seconds of kissing.
Calculations were performed based on average transfer values and several assumptions related to bacterial transfer, kiss contact surface and the value for average saliva volume.
A surprising separate finding revealed that 74 percent of the men in the couples reported kissing more than their female partners.
On average, the males reported 10 kisses per day whereas the women reported only five.
The study was published in open-access format in the journal Microbiome.
AFP RELAXNEWS
Tue Nov 18 2014
Partners who kiss up to nine times per day share the same communities of oral bacteria.
Perasuah semakin licik, perlu sokongan semua pihak terutama media - Azam Baki
Rasuah merupakan jenayah yang unik sifatnya pada masa kini dan Suruhanjaya Pencegahan Rasuah Malaysia (SPRM) memerlukan sokongan daripada semua pihak khususnya media untuk membanterasnya.
KJ tak terfikir untuk kembali ke FAM
Khairy berkata terdapat calon-calon lain yang lebih layak untuk menerajui badan induk itu berbanding beliau.
Dakwa kerajaan ambil tindakan terhadap kritikan, Syed Saddiq diminta tidak hipokrit - Fahmi
Fahmi berkata kerajaan tidak menghalang rakyat untuk mengkritik, khususnya melibatkan dasar yang dilaksanakan kerajaan.
Dua anak Tun M sekali lagi diberi tempoh lanjutan 30 hari bagi isytihar harta
Maklumat harta serta aset Mirzan dan Tan Sri Mokhzani sejak empat dekad lalu perlu dikemukakan dalam tempoh 30 hari kepada SPRM.
AWANI Ringkas: Kes saman fitnah
Ikuti rangkuman berita utama yang menjadi tumpuan sepanjang hari di Astro AWANI menerusi AWANI Ringkas.
AWANI Ringkas: PRK Kuala Kubu Baharu
Ikuti rangkuman berita utama yang menjadi tumpuan sepanjang hari di Astro AWANI menerusi AWANI Ringkas.
Thomas Cup: Zii Jia ketepikan 'kegoyahan' kem perseorangan lelaki negara
Lee Zii Jia tidak mahu terlalu memikirkan situasi kem perseorangan negara yang kurang mantap menjelang aksi pembukaan Kumpulan D saingan Piala Thomas 2024 berdepan Hong Kong, esok.
AirAsia Group bakal disenaraikan di Bursa Malaysia pada September - Tony Fernandes
AirAsia Group Sdn Bhd (AAG) bakal disenaraikan di Bursa Malaysia pada September, mengambil alih status penyenaraian AirAsia X Bhd, kata Ketua Pegawai Eksekutif Capital A Bhd Tan Sri Tony Fernandes.
Sebutan rayuan pendakwaan terhadap Bung Moktar, isteri ditetapkan 29 Julai
Timbalan pendaftar Mahkamah Rayuan Muhammad Noor Firdaus Rosli menetapkan tarikh itu semasa pengurusan kes hari ini dan beliau turut menetapkan pengurusan kes akhir pada 15 Julai.
AWANI 7:45 [26/04/2024] - Wajar tidak dijemput | UM jemput pensyarah Pro-Israel | Rumah terbuka di Kuala Kubu Bharu | Penamaan calon pada Sabtu
#AWANI745 malam ini bersama Irfan Faruqi;
1. PM sindir pensyarah Amerika jemputan UM berkualiti rendah
2. Mahasiswa boikot kuliah, jika VC UM membisu
3. Bersih dakwa Rumah Terbuka Aidilfitri Selangor bercanggah Akta Kesalahan Pilihan Raya
4. SPR selesai persiapan proses penamaan calon PRK DUN Kuala Kubu Baharu
1. PM sindir pensyarah Amerika jemputan UM berkualiti rendah
2. Mahasiswa boikot kuliah, jika VC UM membisu
3. Bersih dakwa Rumah Terbuka Aidilfitri Selangor bercanggah Akta Kesalahan Pilihan Raya
4. SPR selesai persiapan proses penamaan calon PRK DUN Kuala Kubu Baharu